Aluminum 4 1/2" Female NH to 4" Male NPT Female Size_3 1/2 Inch NSN 4210-01-526-2977 NFES 0933

NSN 4210-01-526-2977 NFES 0933

They are usually labeled FDC (Fire Department Connection) and/or AUTO SPKR (Automatic Sprinkler)

2 inch NPSM polyethylene basket strainer

REF/PN: MIL-H-24606

Aluminum 4 1/2" Female NH to 4" Male NPT Female Size_3 1/2 Inch NSN 4210-01-526-2977 NFES 0933Aluminum 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 Female to