3a 1st end thread class 4 2nd end bolt hole quantity counter bore second end, 0.406in.dia; positioning notch w/ 0.1in. radius located second end; e/I5905-00-977-2455 unf 1st end thread series
rcres, 3000 psi operating pressure, M65 deg f to P275 deg f operating temperature, 0.250 in.tube od, one fitting per MS33657E4, one fitting per MS33656E4, 10 deg msialignment, 0.687 in.wrench flats, mil-h-5606 operating medium