Aluminum 1" NH to 1" NH Double Female Male Size_1 1/2 Inch 7 1/2 threads per inch

7 1/2 threads per inch and male 1 1/2 inch NH

NH threads are used by most fire departments and fire trucks

Shipboard Firefighting

Bureau of Indian Affairs (BIA)

Lightweight aluminum construction designed for wildland firefighting

Aluminum 1" NH to 1" NH Double Female Male Size_1 1/2 Inch 7 1/2 threads per inchAluminum adapters are fabricated from seamless extruded 6061 T6 aluminum and hard coat anodized per MIL A 8625 Type III, Class 1. Threads have a blunt start Higbee cut with indicators on adjacent lugs. Part identifications are permanent and stamped prior to hardcoat. Adapters and components meet the requirements of NFPA 1963. A double swivel adapter will not swivel or rotate once both ends are tightened to the male connections. The Safe Water Drinking