Used on arleigh burke class ddg,los angeles class ssn(688),kidd class virginia class cgn(41),ticonderoga class cg(47),nimitz class cvn,seawolf class ssn,spruance class dd(963),oliver perry class ffg. disk
2a single mounting facility thread class 0.250" single mounting facility thread length 1.190" overall length 1.120" overall width circular wafer, bushing mount unef single mounting facility thread series