3a 2nd end thread class 12 2nd end thread quantity per inch reamed or bored to 0.731 in.plus .005 id cadmium inside surface treated anpt 1st end thread series
3a all ends thread class 0.046 in.dia restriction to flow at center of fitting cadmium inside surface treated flareless (tube) unf all ends thread series
Used on 2320-01-097-0248,2320-01-097-0249,2320-01-100-7672,2320-01-097-0260,2320-01-195-7641 hemtt (heavy expanded mobility tactical trucks. 2a 1st end thread class nptf 2nd end thread series