2a single mounting facility thread class 0.375" single mounting facility thread length 2.750" overall length circular wafer, bushing mount unef single mounting facility thread series
Used on safeguard class ars,oliver perry class ffg,spruance class dd(963),austin ship class lpd-4 amphibious transport docks,virginia class cgn(41),forrestal class cv,whidbey island class lsd,nimitz class cvn,supply class aoe,tarawa class lha. weapon system essential