Used on aircraft ac-130a, ac-130h, mc-130h,ec-13. 3a all ends thread class next assembly ALQ172 gp a anodize surface treated rigid, center wrenching facility unjf all ends thread series
Used on support equipment se b-2 bomber. 3a 1st end thread class 20 1st end thread quantity per inch next assembly 4320-01-413-9288 grooved unjf 1st end thread series