Aluminum 2 1/2" NH to 1" NPT Double Male Male Size_1 1/2 Inch NSN: 4210-01-165-6597

NSN: 4210-01-165-6597

The male threaded side of this adapter will only connect to a 1 inch female National Pipe Tapered (NPT) or a National Pipe Straight Hose (NPSH) thread

Meets National Fire Equipment System (NFES #0417)

Due to supply chain issues brass couplings may be imported

NPSH / IPT threads are standard

Aluminum 2 1/2" NH to 1" NPT Double Male Male Size_1 1/2 Inch NSN: 4210-01-165-6597Aluminum 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. The Safe Water Drinking Act section 1417 requires "Lead Free" products to be a minimum of 99. 75% lead free.Aluminum Male to