3a 2nd end thread class 18 2nd end thread quantity per inch supports grumman aerospace corp A10 aircraft cadmium surface treated npt 1st end thread series
Used on f-111 blankers; mx-10189. 3a 2nd end thread class 12 2nd end thread quantity per inch anodize surface treated rigid w/offset wrenching facility unj 2nd end thread series
3b internal thread class right-hand internal 38 internal thread quantity per inch w/one hole drilled 0.082 in. dia located between end of nut anodize surface treated cap, tube, flared unjs internal thread series
