3a 4th end thread class 20 4th end thread quantity per inch fourth end bulkhead, 0.438-20 in., cl 3a, unjf anodize surface treated unjf 4th end thread series
3b internal thread class right-hand internal includes braided cres wire w/ring attached to cap passivate surface treated cap, tube, flared unf internal thread series
3a all ends thread class 12 all ends thread quantity per inch 1st end bulkhead, 1.062-12 in. unj, cl 3a anodize surface treated unj all ends thread series
Used on aircraft application. 3a 2nd end thread class 12 all ends thread quantity per inch first end bulkhead, unj, 1:062 in. thd size, 3a class anodize inside surface treated unj all ends thread series
Used on aircraft application. 3a all ends thread class 2.019" overall length anodize body surface treated male coupling half unjf all ends thread series
