4.5" NH / NST / NPSH Gasket
Replacement rubber gaskets are for female couplings or adapters. These gaskets will fit National Hose thread "NH", National Standard Thread "NST" or National Pipe Straight Hose "NPSH". These gaskets are known as face gaskets or swivel washers.
- OD - 5 7/8"
- ID - 4 9/16"
- Thickness - 1/4"
- These replacement gaskets will fit brass or aluminum female fire hose couplings or adapters with NH / NST or NPSH threads.
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