Size Code
|
MIL-C-38999 Shell Size
|
C Thread Class 2B UNEF
|
F max
|
G min dia
|
V Thread Class 2A UNEF
|
Series 11
|
Series 1
|
8 |
8 |
9 |
7/16-28 |
17.48 |
7.14 |
1/2-28 |
10 |
10 |
11 |
9/16-24 |
10.32 |
5/8-24 |
12 |
12 |
13 |
11/16-20 |
13.49 |
3/4-20 |
14 |
14 |
15 |
13/16-20 |
16.67 |
7/8-20
|
16 |
16 |
17 |
15/16-20 |
19.83 |
1-20 |
18 |
18 |
19 |
1 1/16-18 |
22.23 |
1 3/16-18 |
20 |
20 |
21 |
1 3/16-18 |
19.05 |
25.40 |
22 |
22 |
23 |
1 5/16-18 |
28.58 |
1 7/16-18 |
24 |
24 |
25 |
1 7/16-18 |
31.57 |
|