3a 1st end bulkhead thread class 12 1st end bulkhead thread quantity per inch passivate surface treated flared w/ bulkhead thread unj 1st end bulkhead thread series
Used on supports grumman a10a aircraft. 3a external thread class right-hand external 0.938" overall length cadmium surface treated plug, tube fitting flared (note: drilled hole is optional should not be considered as a separating characteristic unf external thread series
Used on aircraft, b-1b, c-5, c-135, ch-54, h-53, hh-53, lgm-30, t-37, t-38, uh-1. 3a 1st end thread class weapon system essential anodize inside surface treated unjf 2nd end thread series
3a all ends thread class 3.140" overall length 12 all ends thread quantity per inch anodize body surface treated male coupling half un all ends thread series
