CF Flange Hardware

CF Flange Hardware

CF flanges are available with tapped or untapped holes. Tapped flanges are available in UNC /UNF or metric threads. Tapped flanges have through holes, so bolts may protrude slightly from the back of the flange when fastened to an untapped flange. Untapped CF flanges can be fastened to each other with stainless steel bolts and hex nuts or plate nuts. Plate nuts center themselves over two adjacent holes and can be held in place with one finger while the bolts are tightened. They are available for most flange sizes from 1-1/3 to 10 inch ODs. As an alternative to hex head bolts, 12-point bolts are available for CF flanges from 2-3/4 to 10 inch ODs. Silver plated bolts eliminate the need for anti-seize compound in clean room environments.

Specifications

Choose product to view specifications

CF Mini Flange Hardware

Specifications
 
SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-133 (10) OFHC copper gaskets
G-133-SP (10) Silver plated copper gaskets
G-133V (5) Viton gaskets
B-133 (25) SS 8-32 x .75" bolts, nuts & washers
B-133T (25) SS 8-32 x .56" bolts & washers
B-133-SP (25) Silver plated SS 8-32 x .75" bolts, nuts & washers
B-133T-SP (25) Silver plated SS 8-32 x .56" bolts & washers
NP-075 (24) 8-32 plate nuts
KNP-075 (12) Plate nuts and (24) 8-32 x .75" bolts

CF 2 1/8 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-212 (10) OFHC copper gaskets
G-212V (5) Viton gaskets
B-212 (25) SS 1/4-28 x 11/4" bolts, nuts & washers
B-212T (25) SS 1/4-28 x 7/8" bolts & washers
B-212-12 (25) SS 12-pt. 1/4-28 x 11/4" bolts, nuts & washers
B-212T-12 (25) SS 12-pt. 1/4-28 x 7/8" bolts & washers

CF 2 3/4 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-275 (10) OFHC copper gaskets
G-275V (5) Viton gaskets
G-275-SP (10) Silver plated copper gaskets
B-275 (25) SS 1/4-28 x 11/4? bolts, nuts & washers
B-275T (25) SS 1/4-28 x 1? bolts & washers
B-275-12 (25) SS 12-pt. 1/4-28 x 11/4 ? bolts, nuts & washers
B-275-12-SP (25) Silver plated SS 12-pt. 1/4-28 x 11/4? bolts, nuts & washers
B-275T-12 (25) SS 12-pt. 1/4-28 x 1? bolts & washers
B-275T-12-SP (25) Silver plated SS 12-pt. 1/4-28 x 7/8? bolts & washers
B-275T-M (25) SS (metric) M6 x 1.00 x 25mm bolts & washers
NP-150 (24) 1/4-28 plate nuts. See page 63
KNP-150 (12) Plate nuts, (24) 1/4-28 x 11/4? bolts & washers
KNP-150-12 (12) Plate nuts, (24) 12-pt. 1/4-28 x 11/4? bolts & washers

CF 3 3/8 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-338 (10) OFHC copper gaskets
G-338-SP (10) Silver plated copper gaskets
G-338V (1) Viton gasket
B-338 (25) SS 5/16-24 x 13/4? bolts, nuts & washers
B-338T (25) SS 5/16-24 x 11/4? bolts & washers
B-338-12 (25) SS 12-pt. 5/16-24 x 13/4? bolts, nuts & washers
B-338T-12 (25) SS 12-pt. 5/16-24 x 11/4? bolts & washers
B-338-12-SP (25) Silver plated SS 12-pt. 5/16-24 x 13/4? bolts, nuts & washers
B-338T-12-SP (25) Silver plated SS 12-pt. 5/16-24 x 11/4? bolts, washers
NP-200 (24) 5/16-24 plate nuts. See page 63
KNP-200 (16) Plate nuts, (32) 5/16-24 x 13/4? bolts & washers
KNP-200-12 (16) Plate nuts, (32) 12-pt. 5/16-24 x 13/4? bolts & washers
 

CF 4 1/2 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-450 (10) OFHC copper gaskets
G-450-SP (10) Silver plated copper gaskets
G-450V (1) Viton gasket
B-450 (25) SS 5/16-24 x 2? bolts, nuts & washers
B-450T (25) SS 5/16-24 x 11/4? bolts & washers
B-450-12 (25) SS 12-pt. 5/16-24 x 2? bolts, nuts & washers
B-450T-12 (25) SS 12-pt. 5/16-24 x 11/4? bolts & washers
B-450-12-SP (25) Silver plated SS 12-pt. 5/16-24 x 2? bolts, nuts & washers
B-450T-12-SP (25) Silver plated SS 12-pt. 5/16-24 x 11/4? bolts & washers
B-450-M (25) SS (metric) M8 x 1.25 x 35mm bolts & washers
NP-250 (24) 5/16-24 plate nuts. See page 63
KNP-250 (16) Plate nuts, (32) 5/16-24 x 2? bolts & washers
KNP-250-12 (16) Plate nuts, (32) 12-pt. 5/16-24 x 2? bolts & washers

CF 4 5/8 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-462 (10) OFHC copper gaskets
G-462V (1) Viton gasket
B-462 (25) SS 5/16-24 x 21/4" bolts, nuts & washers
B-462T (25) SS 5/16-24 x 11/4" bolts & washers
B-462-12 (25) SS 12-pt. 5/16-24 x 21/4" bolts, nuts & washers
B-462T-12 (25) SS 12-pt. 5/16-24 x 11/4" bolts & washers
NP-300 (24) 5/16-24 plate nuts. See page 63
KNP-300 (20) Plate nuts, (40) 5/16-24 x 21/4" bolts & washers
KNP-300-12 (20) Plate nuts, (40) 12-pt. 5/16-24 x 21/4" bolts & washers

CF 6 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-600 (10) OFHC copper gaskets
G-600V (1) Viton gasket
G-600-SP (10) Silver plated copper gaskets
B-600 (25) SS 5/16-24 x 21/4" bolts, nuts & washers
B-600T (25) SS 5/16-24 x 11/4" bolts & washers
B-600-12 (25) SS 12-pt. 5/16-24 x 21/4" bolts, nuts & washers
B-600T-12 (25) SS 12-pt. 5/16-24 x 11/4" bolts & washers
B-600-12-SP (25) Silver plated SS 12-pt. 5/16-24 x 21/4" bolts, nuts & washers
B-600T-12-SP (25) Silver plated SS 12-pt. 5/16-24 x 11/4" bolts & washers
B-600T-M (25) SS (metric) M8 x 11/4 x 35mm bolts & washers
NP-400 (24) 5/16-24 plate nuts. See page 63
KNP-400 (16) Plate nuts (32) 5/16-24 x 21/4" bolts & washers
KNP-400-12 (16) Plate nuts (32) 12-pt. 5/16-24 x 21/4" bolts & washers

CF 6 3/4 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 
 

Additional Information

MODEL NUMBER DESCRIPTION
G-675 (10) OFHC copper gaskets
G-675V (1) Viton gasket
B-675 (25) SS 5/16-24 x 21/4? bolts, nuts & washers
B-675T (25) SS 5/16-24 x 11/2? bolts & washers
B-675-12 (25) SS 12-pt. 5/16-24 x 21/4? bolts, nuts & washers
B-675T-12 (25) SS 12-pt. 5/16-24 x 13/4? bolts & washers
 

CF 8 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-800 (10) OFHC copper gaskets
G-800V (1) Viton gasket
G-800-SP (10) Silver plated copper gaskets
B-800 (25) SS 5/16-24 x 21/4? bolts, nuts & washers
B-800T (25) SS 5/16-24 x 13/4? bolts & washers
B-800-12 (25) SS 12-pt. 5/16-24 x 21/4? bolts, nuts & washers
B-800T-12 (25) SS 12-pt. 5/16-24 x 13/4? bolts & washers
B-800-12-SP (25) Silver plated SS 12-pt. 5/16-24 x 21/4? bolts, nuts & washers
B-800T-12-SP (25) Silver plated SS 12-pt. 5/16-24 x 13/4? bolts & washers
B-800T-M (25) SS (metric) M8 x 11/4 x 45mm bolts & washers
NP-600 (24) 5/16-24 plate nuts. See page 63
KNP-600 (20) Plate nuts, (40) 5/16-24 x 21/4? bolts & washers
KNP-600-12 (20) Plate nuts, (40) 5/16-24 x 21/4? 12-pt. bolts & washers

CF 10 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-1000 (10) OFHC copper gaskets
G-1000V (1) Viton gasket
G-1000-SP (10) Silver plated copper gaskets
B-1000 (25) SS 5/16-24 x 21/2? bolts, nuts & washers
B-1000T (25) SS 5/16-24 x 13/4? bolts & washers
B-1000-12 (25) SS 12-pt. 5/16-24 x 21/2? bolts, nuts & washers
B-1000T-12 (25) SS 12-pt. 5/16-24 x 13/4? bolts & washers
B-1000-12-SP (25) Silver plated SS 12-pt. 5/16-24 x 21/2? bolts, nuts & washers
B-1000T-12-SP (25) Silver plated SS 12-pt. 5/16-24 x 13/4? bolts & washers
B-1000T-M (25) SS (metric) M8 x 11/4 x 45mm bolts & washers
NP-800 (24) 5/16-24 plate nuts. See page 63
KNP-800 (24) Plate nuts, (48) 5/16-24 x 21/4? bolts & washers
KNP-800-12 (24) Plate nuts, (48) 12-pt. 5/16-24 x 21/4? bolts & washers

CF 12 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-1200 (1) OFHC copper gasket
B-1200 (32) SS 5/16-24 x 3? bolts, nuts & washers
B-1200T (32) SS 5/16-24 x 13/4? bolts & washers
 

CF 13 1/4 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-1325 (1) OFHC copper gasket
G-1325V (1) Viton gasket
B-1325 (30) SS 3/8-24 x 3? bolts, nuts & washers
B-1325T (30) SS 3/8-24 x 2? bolts & washers

CF 14 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-1400 (1) OFHC copper gasket
G-1400V (1) Viton gasket
B-1400 (30) SS 3/8-24 x 3" bolts, nuts & washers
B-1400T (30) SS 3/8-24 x 2" bolts & washers
 

CF 14 1/2 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-1450 (1) OFHC copper gasket
B-1450 (32) SS 3/8-24 x 3" bolts, nuts & washers
B-1450T (32) SS 3/8-24 x 2" bolts & washers

CF 16 1/2 Inch OD Flange Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER DESCRIPTION
G-1650 (1) OFHC copper gasket
G-1650V (1) Viton gasket
B-1650 (36) SS 3/8-24 x 3? bolts, nuts & washers
B-1650T (36) SS 3/8-24 x 2? bolts & washers

CF Nut Plates

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER FLANGE
OD
DESCRIPTION
KNP-075 1-1/3 (12) Plate nuts (24) SS 8-32 x 3/4" bolts and washers
KNP-150 2-3/4 (12) Plate nuts (24) SS 1/4-28 x 1-1/4" bolts and washers
KNP-200 3-3/8 (16) Plate nuts (32) SS 5/16-24 x 1-3/4" bolts and washers
KNP-250 4-1/2 (16) Plate nuts (32) SS 5/16-24 x 2" bolts and washers
KNP-300 4-5/8 (20) Plate nuts (40) SS 5/16-24 x 2-1/4" bolts and washers
KNP-400 6 (16) Plate nuts (32) SS 5/16-24 x 2-1/4" bolts and washers
KNP-600 8 (16) Plate nuts (32) SS 5/16-24 x 2-1/4" bolts and washers
KNP-800 10 (24) Plate nuts (48) SS 5/16-24 x 2-1/2" bolts and washers

CF Plate Nut Assembly Kits with Hex Head Bolts

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 
 

Additional Information

MODEL NUMBER FLANGE
OD
DESCRIPTION
KNP-075 1-1/3 (12) Plate nuts (24) SS 8-32 x 3/4" bolts and washers
KNP-150 2-3/4 (12) Plate nuts (24) SS 1/4-28 x 1-1/4" bolts and washers
KNP-200 3-3/8 (16) Plate nuts (32) SS 5/16-24 x 1-3/4" bolts and washers
KNP-250 4-1/2 (16) Plate nuts (32) SS 5/16-24 x 2" bolts and washers
KNP-300 4-5/8 (20) Plate nuts (40) SS 5/16-24 x 2-1/4" bolts and washers
KNP-400 6 (16) Plate nuts (32) SS 5/16-24 x 2-1/4" bolts and washers
KNP-600 8 (16) Plate nuts (32) SS 5/16-24 x 2-1/4" bolts and washers
KNP-800 10 (24) Plate nuts (48) SS 5/16-24 x 2-1/2" bolts and washers

CF Plate Nut Assembly Kits with 12-pt. Bolts

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER FLANGE
OD
DESCRIPTION
KNP-150-12 2-3/4 (12) Plate nuts (24) SS 12-pt. 1/4-28 x 1-1/4" bolts and washers
KNP-200-12 3-3/8 (16) Plate nuts (32) SS 12-pt. 5/16-24 x 1-3/4" bolts and washers
KNP-250-12 4-1/2 (16) Plate nuts (32) SS 12-pt. 5/16-24 x 2" bolts and washers
KNP-300-12 4-5/8 (20) Plate nuts (40) SS 12-pt. 5/16-24 x 2-1/4" bolts and washers
KNP-400-12 6 (16) Plate nuts (32) SS 12-pt. 5/16-24 x 2-1/4" bolts and washers
KNP-600-12 8 (20) Plate nuts (49) SS 12-pt. 5/16-24 x 2-1/4" bolts and washers
KNP-800-12 10 (24) Plate nuts (48) SS 12-pt. 5/16-24 x 2-1/2" bolts and washers

CF Double-Sided Hardware

SPECIFICATIONS
General: Rotatable or nonrotatable flanges with tapped or clearance bolt holes
Nominal OD sizes: 1-1/3 to 16-1/2 inches
Tube sizes: 1/4 to 14 inches
Materials
   Flange: 304 stainless steel (316L available on request)
   Gaskets: Viton, copper or silver plated
   Bolts: 18-8 stainless steel or silver plated
Vacuum range: 
   Metal seal: >= 1 x 10-13 Torr - UHV
   Elastomer seal: >= 1 x 10-8 Torr - High vacuum
Temperature range: 
   Metal seal: -200°C to 450°C 
   Elastomer seal: -20°C to 150°C 

Additional Information

MODEL NUMBER NOMNIAL
OD
DESCRIPTION
G-133 1-1/3 (10) OFHC copper gaskets
G-133V 1-1/3 (5) Viton gaskets
B-133D 1-1/3 (5) SS 8-32 x 11/4" bolts, nuts and washers
G-212 21/8 2-1/8 (10) OFHC copper gaskets
G-212V 2-1/8 (5) Viton gaskets
B-212D 2-1/8 (25) SS 1/4-28 x 13/4" bolts, nuts and washers
G-275 2-3/4 (10) OFHC copper gaskets
G-275V 2-3/4 (5) Viton gaskets
B-275DS 2-3/4 (25) SS 1/4-28 x 2" bolts, nuts and washers
B-275D 2-3/4 (25) SS 1/4-28 x 13/4" bolts, nuts and washers
KNP-150D 2-3/4 (6) Plate nuts, 1/4-28 x 2" (12) bolts and washers
G-338 3-3/8 (10) OFHC copper gaskets
G-338V 3-3/8 (1) Viton gaskets
B-338D 3-3/8 (25) SS 5/16-24 x 21/2" bolts, nuts and washers
G-450 4-1/2 (10) OFHC copper gaskets
G-450V 4-1/2 (1) Viton gaskets
B-450D 4-1/2 (25) SS 5/16-24 x 23/4" bolts, nuts and washers
G-462 4-5/8 (10) OFHC copper gaskets
G-462V 4-5/8 (1) Viton gaskets
B-462D 4-5/8 (25) SS 5/16-24 x 3" bolts, nuts and washers
G-600 6 (10) OFHC copper gaskets
G-600V 6 (1) Viton gaskets
B-600D 6 (25) SS 5/16-24 x 3" bolts, nuts and washers
G-675 6-3/4 (10) OFHC copper gaskets
G-675V 6-3/4 (1) Viton gaskets
B-675D 6-3/4 (25) SS 5/16-24 x 3" bolts, nuts and washers
G-800  8 (10) OFHC copper gaskets
G-800V 8 (1) Viton gaskets
B-800D 8 (25) SS 5/16-24 x 3" bolts, nuts & washers
G-1000 10 (10) OFHC copper gaskets
G-1000V 10 (1) Viton gaskets
B-1000D 10 (25) SS 5/16-24 x 31/2" bolts, nuts and washers
G-1325  13-1/4 (1) OFHC copper gaskets
G-1325V 13-1/4 (1) Viton gaskets