2a 1st end thread class 16 1st end thread quantity per inch connects lubrication oil filter head with ten plate oil cooler rigid w/offset wrenching facility un 1st end thread series
Used on (c93) five ton tanker trailer, model m967a2, 2330-01-495-0040 (c94) fiveton tanker trailer, model m969a3, 2330-01-495-0043. 2a 1st end thread class 14 1st end thread quantity per inch terminal bolt (frame coupling) rigid, threaded internal nptf 2nd end thread series
Used on aircraft, b2. 3b all ends thread class 12 all ends thread quantity per inch pressure tap adapter used in fluid system, 3/4 inch passage; has inlet in side for 1/8 inch npt plain unj all ends thread series