Used on spruance class dd (963); engine, aircraft, f100-pw-200 (f-16a/b/c/d); virginia class cgn (41); nimitz cvlass cvn; engine, aircraft t33-pw-102 (c0135e, ec-135h/k/p); los angeles class ssn (688); ticonderoga class cg (47); sturgeon class ssn (637); forrestal class cv. weapon system essential