Used on aircraft, c-2a (reprocured); fire pumps; l.p. compressors; shipboard material handling equipment (mhe); vehicle, aircraft refueler r-14; air compressors, high pressure; moored training ship; aircraft, t-39; helicopter, mh-53e; deep submergence systems programs (dssp). 0.344" hole diameter 3.180" overall width 2 bolt hole quantity non-circular