Dimensions Threaded Full and Half Couplings ASME B16.11
Class 3000
|
| NPS |
Length |
Outside Dia |
Min Thread Length |
| A |
D |
B |
J |
| 1/2 |
48 |
28 |
10.9 |
13.6 |
| 3/4 |
51 |
35 |
12.7 |
13.9 |
| 1 |
60 |
44 |
14.7 |
17.3 |
| 1.1/4 |
67 |
57 |
17 |
18 |
| 1.1/2 |
79 |
64 |
17.8 |
18.4 |
| 2 |
86 |
76 |
19 |
19.2 |
| 2.1/2 |
92 |
92 |
23.6 |
28.9 |
| 3 |
108 |
108 |
25.9 |
30.5 |
| 4 |
121 |
140 |
27.7 |
33 |
Class 6000
|
| NPS |
Length |
Outside Dia |
Min Thread Length |
| A |
D |
B |
J |
| 1/2 |
48 |
38 |
10.9 |
13.6 |
| 3/4 |
51 |
44 |
12.7 |
13.9 |
| 1 |
60 |
57 |
14.7 |
17.3 |
| 1.1/4 |
67 |
64 |
17 |
18 |
| 1.1/2 |
79 |
76 |
17.8 |
18.4 |
| 2 |
86 |
92 |
19 |
19.2 |
| 2.1/2 |
92 |
108 |
23.6 |
28.9 |
| 3 |
108 |
127 |
25.9 |
30.5 |
| 4 |
121 |
159 |
27.7 |
33 |
General notes..
- Dimensions are in millimeters unless otherwise indicated.
- Dimension (B) is minimum length of perfect thread.
The length of useful thread (B plus threads with fully formed roots and flat crests) shall not be less than J.
