2a single mounting facility thread class 0.417" single mounting facility thread length 2.112" overall length tap, circular, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.417" single mounting facility thread length 1.797" overall length tap, circular, bushing mount unef single mounting facility thread series
0.250" single mounting facility thread length 2.593" overall length 0.937" overall width weapon system essential circular wafer, bushing mount unef single mounting facility thread series