Used on w/s: engine, aircraft, f110-ge-100/129 (f-16c/d); aircraft, (ac-130h, mc-130h, ec-130e, hc-130); guided missile launching system, mk 26 (gmls); support equipment, b-1 aircraft; aircraft, c-2a (reprocured); trainer, b-1b aircraft; close in weapon system (ciws-phalanx); tactical air opns module (an/tyq-(23)); deep submergence systems programs (dssp). 0.225" hole diameter tin surface treated