Used on w/s: support equipment, b-52 aircraft; airborne mobile dir air spt ctl (2id), (02m jul83) (an/uyq-3a); fire pumps; engine, aircraft tf33-pw-102 (c-135e, ec-135h/k/p); aircraft, thunderbolt ii, a-10; aircraft, (ac-130h, mc130h, ec-130e, hc-130); test consoles, mini-sace; support equipment, b-1 aircraft; trainer, b-1b aircraft; missile, advanced medium range, air-to-air (amraam)/aim120a. 0.139" hole diameter cadmium surface treated