Used on helicopter, ch-53a/d/e. 3b 1st end thread class 12 1st end thread quantity per inch grumman aerospace corp A10 aircraft anodize inside surface treated unj 1st end thread series
Used on aircraft, a-10, c-135, mhu-173, ov-10a, f-4, f106. 3b 1st end thread class 16 1st end thread quantity per inch weapons system essential anodize surface treated unjf 1st end thread series