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National Stock Number (NSN 4210-01-521-1691)
5 inch NH / NST male hose coupling or fire hydrant is 3
Equivalent part number - HA25NYC76
Fire Rescue
Aluminum 2 1/2" Female NH to 4 1/2" Male NH Origin_Global National Stock Number (NSN 4210-01-521-1691)Aluminum 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
US$ 91.65
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