2a all ends thread class 12 all ends thread quantity per inch nipple, tube, large hex use with o-ring; 37 deg flare cadmium surface treated flared w/ center wrenching facility un all ends thread series
Used on mobile electric power plant;a/s 37a-3. 2a 1st end thread class 12 all ends thread quantity per inch male run tee; straight thread run tee unf 1st end thread series
Used on ship; air handling unit of chiller. 1st end compression type for 1/4 in. o.d. tube; 2nd end 1/4 in. female pipe threads npt 2nd end thread series