3a external thread class right-hand external 0.625" overall length anodize surface treated plug, tube fitting flared (note: drilled hole is optional should not be considered as a separating characteristic unf external thread series
3b internal thread class right-hand internal cap drilled for attachment of safety chain passivate surface treated cap, tube, flared unjf internal thread series
3a first quick disconnect end thread class 3.893" overall length 12 first quick disconnect end thread quantity per inch anodize body surface treated coupling assembly un first quick disconnect end thread series