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11 1/2 threads per inch and male 1 inch NPSH
Note - 2 inch NH / NST is very rare and is often mistaken in place of 1
The wrench is spark and corrosion proof and includes a quick snap belt clip
A tab to allow for operations with heavy fire-fighting gloves
Aluminum 4" Female NH to 4" Male NPT Male Threads_NH 11 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. The Safe Water Drinking Act section 1417 requires "Lead Free" products to be a minimum of 99. 75% lead free. Aluminum Female to