| NPS | Bolt Circle Dia. | Bolt Hole Size | Dia. of Bolts | Dia. of Hub C Min | Length of Threads C Min. | Length of Bolts | Number of Bolt Holes | Outside Flange Dia. A | Overall Length B Min. | Thickness of Flange D Min |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 1/2 | 3.32 | 0.56 | 0.50 | 2.50 | --- | 1.75 | 4.00 | 4.38 | 0.81 | 0.44 |
