⬅ CF COMPONENTS

CF Blank Flange, non-ROTATABLE

HIS manufactures a complete line of knife-edge CF style flanges using our CNC lathes. This ensures consistency, tight dimensional tolerances, and fine surface finishes. These flanges conform to industry standards and are interchangeable with all other CF fittings. Fittings are made of 304 stainless steel, but 316 is available upon request. Tapped bolt holes are also available upon request.

HIS CF flanges are guaranteed leak-free to 1x10^(-13) Torr and in temperature ranges from -196° C to +500° C.

Measurements are listed in inches (mm).

Part No.
Flange Size
Bolt No.
Hole Dia.
A
B
BCD

VC-CF-133000N1.33 (33.9)60.17 (4.4)1.33 (33.9)0.30 (7.6)1.06 (27)

VC-CF-212000N2.13 (53.9)40.27 (6.7)2.12 (53.8)0.47 (11.9)1.63 (41.3)

VC-CF-275000N2.75 (69.9)60.27 (6.7)2.73 (69.3)0.50 (12.7)2.31 (58.7)

VC-CF-338000N3.38 (85.7)80.33 (8.4)3.36 (85.3)0.69 (17.4)2.85 (72.4)

VC-CF-450000N4.50 (114.3)80.33 (8.4)4.47 (113.5)0.69 (17.4)3.63 (92.2)

VC-CF-462000N4.63 (117.5)100.33 (8.4)4.61 (117.1)0.81 (20.6)4.03 (102.4)

VC-CF-600000N6.00 (152.4)160.33 (8.4)5.97 (151.6)0.78 (19.8)5.13 (130.3)

VC-CF-675000N6.75 (171.5)180.33 (8.4)6.73 (170.9)0.84 (21.4)5.97 (151.6)

VC-CF-800000N8.00 (203.2)200.33 (8.4)7.97 (202.4)0.88 (22.2)7.13 (181.1)

VC-CF-1000000N10.00 (254)240.33 (8.4)9.97 (253.2)0.97 (24.6)9.13 (231.9)

VC-CF-1200000N12.00 (304.8)320.33 (8.4)11.97 (304)1.13 (28.6)11.18 (284)

VC-CF-1325000N13.25 (336.6)300.39 (9.9)13.25 (336.6)1.13 (28.6)12.06 (306.3)

VC-CF-1400000N14.00 (335.6)300.39 (9.9)14.00 (335.6)1.13 (28.6)12.81 (325.4)

VC-CF-1450000N14.50 (368.3)320.39 (9.9)14.50 (368.3)1.13 (28.6)13.31 (338.1)

VC-CF-1650000N16.50 (419.1)360.39 (9.9)16.50 (419.1)1.13 (28.6)15.31 (388.9)

CF Blank Flange, non-ROTATABLE (tapped)

Part No.
Flange Size
Bolt No.
Hole
A
B
BCD

VC-CF-133000NT1.33 (33.9)68-321.33 (33.9)0.30 (7.6)1.06 (27)

VC-CF-212000NT2.13 (53.9)41/4-282.12 (53.8)0.47 (11.9)1.63 (41.3)

VC-CF-275000NT2.75 (69.9)61/4-282.73 (69.3)0.50 (12.7)2.31 (58.7)

VC-CF-338000NT3.38 (85.7)85/16-243.36 (85.3)0.69 (17.4)2.85 (72.4)

VC-CF-450000NT4.50 (114.3)85/16-244.47 (113.5)0.69 (17.4)3.63 (92.2)

VC-CF-462000NT4.63 (117.5)105/16-244.61 (117.1)0.81 (20.6)4.03 (102.4)

VC-CF-600000NT6.00 (152.4)165/16-245.97 (151.6)0.78 (19.8)5.13 (130.3)

VC-CF-675000NT6.75 (171.5)185/16-246.73 (170.9)0.84 (21.4)5.97 (151.6)

VC-CF-800000NT8.00 (203.2)205/16-247.97 (202.4)0.88 (22.2)7.13 (181.1)

VC-CF-1000000NT10.00 (254)245/16-249.97 (253.2)0.97 (24.6)9.13 (231.9)

VC-CF-1200000NT12.00 (304.8)325/16-2411.97 (304)1.13 (28.6)11.18 (284)

VC-CF-1325000NT13.25 (336.6)303/8-2413.25 (336.6)1.13 (28.6)12.06 (306.3)

VC-CF-1400000NT14.00 (335.6)303/8-2414.00 (335.6)1.13 (28.6)12.81 (325.4)

VC-CF-1450000NT14.50 (368.3)323/8-2414.50 (368.3)1.13 (28.6)13.31 (338.1)

VC-CF-1650000NT16.50 (419.1)363/8-2416.50 (419.1)1.13 (28.6)15.31 (388.9)

CF Blank Flange, rotATable

Part No.
Flange Size
Bolt No.
Hole Dia.
A
B
BCD

VC-CF-133000R1.33 (33.9)60.17 (4.4)1.33 (33.9)0.30 (7.6)1.06 (27)

VC-CF-212000R2.13 (53.9)40.27 (6.7)2.12 (53.8)0.47 (11.9)1.63 (41.3)

VC-CF-275000R2.75 (69.9)60.27 (6.7)2.73 (69.3)0.50 (12.7)2.31 (58.7)

VC-CF-338000R3.38 (85.7)80.33 (8.4)3.36 (85.3)0.69 (17.4)2.85 (72.4)

VC-CF-450000R4.50 (114.3)80.33 (8.4)4.47 (113.5)0.75 (19.1)3.63 (92.2)

VC-CF-462000R4.63 (117.5)100.33 (8.4)4.61 (117.1)0.81 (20.6)4.03 (102.4)

VC-CF-600000R6.00 (152.4)160.33 (8.4)5.97 (151.6)0.84 (21.4)5.13 (130.3)

VC-CF-675000R6.75 (171.5)180.33 (8.4)6.73 (170.9)0.84 (21.4)5.97 (151.6)

VC-CF-800000R8.00 (203.2)200.33 (8.4)7.97 (202.4)0.94 (23.9)7.13 (181.1)

VC-CF-1000000R10.00 (254)240.33 (8.4)9.97 (253.2)0.97 (24.6)9.13 (231.9)

VC-CF-1200000R12.00 (304.8)320.33 (8.4)11.97 (304)1.13 (28.6)11.18 (284)

VC-CF-1325000R13.25 (336.6)300.39 (9.9)13.25 (336.6)1.13 (28.6)12.06 (306.3)

VC-CF-1400000R14.00 (355.6)300.39 (9.9)14.00 (355.6)1.13 (28.6)12.81 (325.4)

VC-CF-1450000R14.50 (368.3)320.39 (9.9)14.50 (368.3)1.13 (28.6)13.31 (338.1)

VC-CF-1650000R16.50 (419.1)360.39 (9.9)16.50 (419.1)1.13 (28.6)15.31 (388.9)

CF Blank Flange, rotATable (tapped)

Part No.
Flange Size
Bolt No.
Hole Dia.
A
B
BCD

VC-CF-133000RT1.33 (33.9)68-321.33 (33.9)0.30 (7.6)1.06 (27)

VC-CF-212000RT2.13 (53.9)41/4-282.12 (53.8)0.47 (11.9)1.63 (41.3)

VC-CF-275000RT2.75 (69.9)61/4-282.73 (69.3)0.50 (12.7)2.31 (58.7)

VC-CF-338000RT3.38 (85.7)85/16-243.36 (85.3)0.69 (17.4)2.85 (72.4)

VC-CF-450000RT4.50 (114.3)85/16-244.47 (113.5)0.75 (19.1)3.63 (92.2)

VC-CF-462000RT4.63 (117.5)105/16-244.61 (117.1)0.81 (20.6)4.03 (102.4)

VC-CF-600000RT6.00 (152.4)165/16-245.97 (151.6)0.84 (21.4)5.13 (130.3)

VC-CF-675000RT6.75 (171.5)185/16-246.73 (170.9)0.84 (21.4)5.97 (151.6)

VC-CF-800000RT8.00 (203.2)205/16-247.97 (202.4)0.94 (23.9)7.13 (181.1)

VC-CF-1000000RT10.00 (254)245/16-249.97 (253.2)0.97 (24.6)9.13 (231.9)

VC-CF-1200000RT12.00 (304.8)325/16-2411.97 (304)1.13 (28.6)11.18 (284)

VC-CF-1325000RT13.25 (336.6)303/8-2413.25 (336.6)1.13 (28.6)12.06 (306.3)

VC-CF-1400000RT14.00 (355.6)303/8-2414.00 (355.6)1.13 (28.6)12.81 (325.4)

VC-CF-1450000RT14.50 (368.3)323/8-2414.50 (368.3)1.13 (28.6)13.31 (338.1)

VC-CF-1650000RT16.50 (419.1)363/8-2416.50 (419.1)1.13 (28.6)15.31 (388.9)

Part No.	Flange Size	Bolt No.	Hole Dia.	A	B	BCD
VC-CF-133000N	1.33 (33.9)	6	0.17 (4.4)	1.33 (33.9)	0.30 (7.6)	1.06 (27)
VC-CF-212000N	2.13 (53.9)	4	0.27 (6.7)	2.12 (53.8)	0.47 (11.9)	1.63 (41.3)
VC-CF-275000N	2.75 (69.9)	6	0.27 (6.7)	2.73 (69.3)	0.50 (12.7)	2.31 (58.7)
VC-CF-338000N	3.38 (85.7)	8	0.33 (8.4)	3.36 (85.3)	0.69 (17.4)	2.85 (72.4)
VC-CF-450000N	4.50 (114.3)	8	0.33 (8.4)	4.47 (113.5)	0.69 (17.4)	3.63 (92.2)
VC-CF-462000N	4.63 (117.5)	10	0.33 (8.4)	4.61 (117.1)	0.81 (20.6)	4.03 (102.4)
VC-CF-600000N	6.00 (152.4)	16	0.33 (8.4)	5.97 (151.6)	0.78 (19.8)	5.13 (130.3)
VC-CF-675000N	6.75 (171.5)	18	0.33 (8.4)	6.73 (170.9)	0.84 (21.4)	5.97 (151.6)
VC-CF-800000N	8.00 (203.2)	20	0.33 (8.4)	7.97 (202.4)	0.88 (22.2)	7.13 (181.1)
VC-CF-1000000N	10.00 (254)	24	0.33 (8.4)	9.97 (253.2)	0.97 (24.6)	9.13 (231.9)
VC-CF-1200000N	12.00 (304.8)	32	0.33 (8.4)	11.97 (304)	1.13 (28.6)	11.18 (284)
VC-CF-1325000N	13.25 (336.6)	30	0.39 (9.9)	13.25 (336.6)	1.13 (28.6)	12.06 (306.3)
VC-CF-1400000N	14.00 (335.6)	30	0.39 (9.9)	14.00 (335.6)	1.13 (28.6)	12.81 (325.4)
VC-CF-1450000N	14.50 (368.3)	32	0.39 (9.9)	14.50 (368.3)	1.13 (28.6)	13.31 (338.1)
VC-CF-1650000N	16.50 (419.1)	36	0.39 (9.9)	16.50 (419.1)	1.13 (28.6)	15.31 (388.9)

Part No.	Flange Size	Bolt No.	Hole	A	B	BCD
VC-CF-133000NT	1.33 (33.9)	6	8-32	1.33 (33.9)	0.30 (7.6)	1.06 (27)
VC-CF-212000NT	2.13 (53.9)	4	1/4-28	2.12 (53.8)	0.47 (11.9)	1.63 (41.3)
VC-CF-275000NT	2.75 (69.9)	6	1/4-28	2.73 (69.3)	0.50 (12.7)	2.31 (58.7)
VC-CF-338000NT	3.38 (85.7)	8	5/16-24	3.36 (85.3)	0.69 (17.4)	2.85 (72.4)
VC-CF-450000NT	4.50 (114.3)	8	5/16-24	4.47 (113.5)	0.69 (17.4)	3.63 (92.2)
VC-CF-462000NT	4.63 (117.5)	10	5/16-24	4.61 (117.1)	0.81 (20.6)	4.03 (102.4)
VC-CF-600000NT	6.00 (152.4)	16	5/16-24	5.97 (151.6)	0.78 (19.8)	5.13 (130.3)
VC-CF-675000NT	6.75 (171.5)	18	5/16-24	6.73 (170.9)	0.84 (21.4)	5.97 (151.6)
VC-CF-800000NT	8.00 (203.2)	20	5/16-24	7.97 (202.4)	0.88 (22.2)	7.13 (181.1)
VC-CF-1000000NT	10.00 (254)	24	5/16-24	9.97 (253.2)	0.97 (24.6)	9.13 (231.9)
VC-CF-1200000NT	12.00 (304.8)	32	5/16-24	11.97 (304)	1.13 (28.6)	11.18 (284)
VC-CF-1325000NT	13.25 (336.6)	30	3/8-24	13.25 (336.6)	1.13 (28.6)	12.06 (306.3)
VC-CF-1400000NT	14.00 (335.6)	30	3/8-24	14.00 (335.6)	1.13 (28.6)	12.81 (325.4)
VC-CF-1450000NT	14.50 (368.3)	32	3/8-24	14.50 (368.3)	1.13 (28.6)	13.31 (338.1)
VC-CF-1650000NT	16.50 (419.1)	36	3/8-24	16.50 (419.1)	1.13 (28.6)	15.31 (388.9)

Part No.	Flange Size	Bolt No.	Hole Dia.	A	B	BCD
VC-CF-133000R	1.33 (33.9)	6	0.17 (4.4)	1.33 (33.9)	0.30 (7.6)	1.06 (27)
VC-CF-212000R	2.13 (53.9)	4	0.27 (6.7)	2.12 (53.8)	0.47 (11.9)	1.63 (41.3)
VC-CF-275000R	2.75 (69.9)	6	0.27 (6.7)	2.73 (69.3)	0.50 (12.7)	2.31 (58.7)
VC-CF-338000R	3.38 (85.7)	8	0.33 (8.4)	3.36 (85.3)	0.69 (17.4)	2.85 (72.4)
VC-CF-450000R	4.50 (114.3)	8	0.33 (8.4)	4.47 (113.5)	0.75 (19.1)	3.63 (92.2)
VC-CF-462000R	4.63 (117.5)	10	0.33 (8.4)	4.61 (117.1)	0.81 (20.6)	4.03 (102.4)
VC-CF-600000R	6.00 (152.4)	16	0.33 (8.4)	5.97 (151.6)	0.84 (21.4)	5.13 (130.3)
VC-CF-675000R	6.75 (171.5)	18	0.33 (8.4)	6.73 (170.9)	0.84 (21.4)	5.97 (151.6)
VC-CF-800000R	8.00 (203.2)	20	0.33 (8.4)	7.97 (202.4)	0.94 (23.9)	7.13 (181.1)
VC-CF-1000000R	10.00 (254)	24	0.33 (8.4)	9.97 (253.2)	0.97 (24.6)	9.13 (231.9)
VC-CF-1200000R	12.00 (304.8)	32	0.33 (8.4)	11.97 (304)	1.13 (28.6)	11.18 (284)
VC-CF-1325000R	13.25 (336.6)	30	0.39 (9.9)	13.25 (336.6)	1.13 (28.6)	12.06 (306.3)
VC-CF-1400000R	14.00 (355.6)	30	0.39 (9.9)	14.00 (355.6)	1.13 (28.6)	12.81 (325.4)
VC-CF-1450000R	14.50 (368.3)	32	0.39 (9.9)	14.50 (368.3)	1.13 (28.6)	13.31 (338.1)
VC-CF-1650000R	16.50 (419.1)	36	0.39 (9.9)	16.50 (419.1)	1.13 (28.6)	15.31 (388.9)

Part No.	Flange Size	Bolt No.	Hole Dia.	A	B	BCD
VC-CF-133000RT	1.33 (33.9)	6	8-32	1.33 (33.9)	0.30 (7.6)	1.06 (27)
VC-CF-212000RT	2.13 (53.9)	4	1/4-28	2.12 (53.8)	0.47 (11.9)	1.63 (41.3)
VC-CF-275000RT	2.75 (69.9)	6	1/4-28	2.73 (69.3)	0.50 (12.7)	2.31 (58.7)
VC-CF-338000RT	3.38 (85.7)	8	5/16-24	3.36 (85.3)	0.69 (17.4)	2.85 (72.4)
VC-CF-450000RT	4.50 (114.3)	8	5/16-24	4.47 (113.5)	0.75 (19.1)	3.63 (92.2)
VC-CF-462000RT	4.63 (117.5)	10	5/16-24	4.61 (117.1)	0.81 (20.6)	4.03 (102.4)
VC-CF-600000RT	6.00 (152.4)	16	5/16-24	5.97 (151.6)	0.84 (21.4)	5.13 (130.3)
VC-CF-675000RT	6.75 (171.5)	18	5/16-24	6.73 (170.9)	0.84 (21.4)	5.97 (151.6)
VC-CF-800000RT	8.00 (203.2)	20	5/16-24	7.97 (202.4)	0.94 (23.9)	7.13 (181.1)
VC-CF-1000000RT	10.00 (254)	24	5/16-24	9.97 (253.2)	0.97 (24.6)	9.13 (231.9)
VC-CF-1200000RT	12.00 (304.8)	32	5/16-24	11.97 (304)	1.13 (28.6)	11.18 (284)
VC-CF-1325000RT	13.25 (336.6)	30	3/8-24	13.25 (336.6)	1.13 (28.6)	12.06 (306.3)
VC-CF-1400000RT	14.00 (355.6)	30	3/8-24	14.00 (355.6)	1.13 (28.6)	12.81 (325.4)
VC-CF-1450000RT	14.50 (368.3)	32	3/8-24	14.50 (368.3)	1.13 (28.6)	13.31 (338.1)
VC-CF-1650000RT	16.50 (419.1)	36	3/8-24	16.50 (419.1)	1.13 (28.6)	15.31 (388.9)