Used on nimitz class cvn, spruance class dd (963), los angeles class ssn (688), powhatan class t-atf 166, forrestal class cv, whidbey island class lsd, arleigh burke class ddg. 1.125" overall length 0.500" overall width
2a single mounting facility thread class 3.000" overall length 1.156" overall width 32 single mounting facility thread quantity per inch unc single mounting facility thread series