3a all ends thread class 2.572" overall length bulkhead threads on fluid end connection anodize body surface treated male coupling half unf all ends thread series
2a 1st end thread class second end bulkhead, unf, 0.750 in. thd size, 2a class; supports anthony model mlt 6-2 forklift, 6000 lb.; nsn 3930003271575 unf 1st end thread series