| Size Designation Pipe Outside Diameter |
Coupling Outside Diameter |
Minimum Length | Diameter of Recess Q |
Width of Bearing Face b |
Mass | |||
| Short N˪ |
Long N˪ |
Short | Long | |||||
| D (in) | D (in) | W (in) | (in) | (in) | (in) | (in) | (lb) | (lb) |
| 4-1/2 | 4.500 | 5.000 | 6 1/4 | 7 | 4 19/32 | 5/32 | 7.98 | 9.16 |
| 5 | 5.000 | 5.563 | 6 1/2 | 7 3/4 | 5 3/32 | 3/16 | 10.27 | 12.68 |
| 5-1/2 | 5.500 | 6.050 | 6 3/4 | 8 | 5 19/32 | 1/8 | 11.54 | 14.15 |
| 6-5/8 | 6.625 | 7.390 | 7 1/4 | 8 3/4 | 6 23/32 | 1/4 | 20.11 | 25.01 |
| 7 | 7.000 | 7.875 | 7 1/4 | 9 | 7 3/32 | 3/16 | 18.49 | 23.87 |
| 7-5/8 | 7.625 | 8.500 | 7 1/2 | 9 1/4 | 7 25/32 | 7/32 | 27.11 | 34.46 |
| 8-5/8 | 8.625 | 9.625 | 7 3/4 | 10 | 8 25/32 | 1/4 | 35.79 | 47.77 |
| 9-5/8 | 9.625 | 10.625 | 7 3/4 | 10 1/2 | 9 25/32 | 1/4 | 39.75 | 56.11 |
| 10-3/4 | 10.750 | 11.750 | 8 | - | 10 29/32 | 1/4 | 45.81 | - |
| 11-3/4 | 11.750 | 12.750 | 8 | - | 11 29/32 | 1/4 | 49.91 | - |
| 13-3/8 | 13.375 | 14.375 | 8 | - | 13 17/32 | 7/32 | 56.57 | - |
| Refer Figures 1 and 2 | ||||||||
| The size designation for the Coupling is the same as the size designation for the Pipe on which the Coupling is used. | ||||||||
| For Couplings, Groups 1, 2 and 3, Tolerance on Outside Diameter W: ± 1 % but not greater than ± 1/8 in. | ||||||||
| For Couplings, Group 4, Tolerance on Outside Diameter W: ± 1 % but not greater than + 1/8 in, -1/16 in. | ||||||||
| Tolerance on Diameter of Recess, Q, for all Groups: + 0.031 in, -0.00 in. | ||||||||
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