2a thread class right-hand any acceptable overall length any acceptable overall width 40 thread quantity per inch paint surface treated hood, top opening unc thread series
Used on an/frc-109 30890. 2a single mounting facility thread class 0.312" single mounting facility thread length 1.666" overall length tap, circular, bushing mount unef single mounting facility thread series
Used on multi-hull bo 03950. 2b single mounting facility thread class 2.270" overall length 32 single mounting facility thread quantity per inch replacement key 11-1941-2 miniature, pin mount unc single mounting facility thread series