2a single mounting facility thread class 0.250" single mounting facility thread length 2.372" overall length tap, circular, bushing mount unef single mounting facility thread series
Used on qticonderoga class cg (47), yellowstone class ad-41, kidd class ddg, oliver perry class ffg, powatan class t-atf 166, usns henry j. kaiser class tao, emory s. island class as, iwo jima class lph; helicopter, ch-53/d/e. 2a thread class 32 thread quantity per inch weapon system essential uns thread series