2b internal thread class right-hand internal 12 internal thread quantity per inch passivate surface treated cap, tube, flared un internal 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
Used on grumman aircraft model a10. 3b internal thread class right-hand internal 12 internal thread quantity per inch anodize surface treated cap, tube, flared un internal thread series
Used on supports grumman a10 aircraft. 3b internal thread class right-hand internal 12 internal thread quantity per inch cadmium surface treated cap, tube, flareless unj internal thread series
2b internal thread class right-hand internal 12 internal thread quantity per inch passivate surface treated cap, tube, flareless un internal thread series