Aluminum is light and economical with good abrasion resistance and fair corrosion resistance, which covers water, hydraulic oil, coolants, gasoline and petroleum. This 4" x 3" part b coupler connects coupler x male NPT.
- Size: 4" coupling x 3" connection
- Type: Part B coupler
- Connection: coupler x male NPT
- Material: aluminum
- Maximum allowable working pressure: 100 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



