AY McDonald 30LT Gasket For Swivels

Gaskets are used to seal malleable iron offset or straight fittings on the face of the gas meter when tightening the swivel nut on meter thread or meter nut plug. These rubber gaskets made of Buna-N or neoprene are resistant to the action of natural and manufactured gases. The inside diameter is intended to lightly grip the pilot O.D. of the fitting to minimize problems during assembly of the swivel nut to the meter.