The part b coupler is the coupler x male NPT half of a cam and groove pair. In 1-1/2" and brass, it covers most of what a transfer line asks for.
- Size: 1-1/2"
- Type: Part B coupler
- Connection: coupler x male NPT
- Material: brass
- Maximum allowable working pressure: 250 psi
- Pressure rating is based on Buna-N seals below 100°F
- Cast, machined and assembled in the USA
- Assembled with solid pins
- Complies with Commercial Item Description A-A-59326D for quick disconnect couplings
- Not rated for compressed gas service, including air and steam



