2b single mounting facility thread class 2.656" overall length 24 single mounting facility thread quantity per inch tap, circuit selector unc single mounting facility thread series
2a single mounting facility thread class 0.250" single mounting facility thread length 2.705" overall length 1.125" overall width circular wafer, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.250" single mounting facility thread length 1.625" overall length 1.125" overall width circular wafer, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.380" single mounting facility thread length 2.310" overall length 1.250" overall width circular wafer, bushing mount unef single mounting facility thread series
Used on aircraft, f4s, ta-4j,tomcat f-14a, harrier av-8b, prowler ea-6b, intuder a-6e, hornet f/a-18, f4n; alq-126b counter measure set. 32 thread quantity per inch weapon system essential uns thread series