2b inlet thread class polytetrafluoroethylene coat id to 0.378 in. on second end plastic polytetrafluoroethylene surface treated unjf inlet thread series
2a all ends thread class 2.125" overall length 16 all ends thread quantity per inch double end shut-off stem passivate body surface treated male coupling half un all ends thread series
2b internal thread class right-hand internal 12 internal thread quantity per inch cap drilled for attaching chain passivate surface treated cap, tube, flared unj internal thread series