O.D.

I.D.

Thread

inch

mm

inch

mm

4-1/8

104.78

2

50.80

NC31,NC35

2-1/4

57.15

NC35

4-3/4

120.65

2

50.80

NC35

2-1/4

57.15

NC35,NC38(3-1/2IF)

6-1/4

158.75

2-1/4

57.15

NC46

2-13/16

71.44

NC46(4 IF)

6-1/2

165.1

2-1/4

57.15

NC46(4 IF)

2-13/16

71.44

7

177.8

2-1/4

57.15

NC50(4-1/2 IF)

2-13/16

71.44

8

203.2

2-13/16

71.44

6-5/8 REG

3

76.20

9

228.6

2-13/16

71.44

7-5/8 REG

3

76.20

9-1/2

241.3

3

76.20

7-5/8 REG

10

254

3

76.20

NC70

11

275.4

3

76.20

NC77