Used on engine, aircraft tf33-p-3/5/9 (c/ec-135, b-52h); engine, aircraft, f-108 (cfm-56, kc-135a); engine, aircraft tf33-100 (e3a/b/c); engine, aircraft f100-pw-100 (f-15a/b/c/d); forrestal class cv; nimitz class cvn; wasp class lhd; tarawa class lha; mars class t-afs 1. 1.849" center hole diameter