Used on w/s:aircraft, (ac-130h, mc-130h, ec-130e, hc-130); compressor, reciprocating m4; airborne mobile dir air spt ctl (2id), (02m jul83)(an/uyq-3a); aviation engine test systems (aets); support equipment, b-1 aircraft; central message switch, an/tyc-39a; boilers, 1200 psi; systems, 02n2; fire pumps; main feed pumps. 0.256" hole diameter 0.494" outside diameter 0.023" material thickness cadmium surface treated flat external teeth