2a single mounting facility thread class 0.250" single mounting facility thread length 0.992" overall length tap, circular, bushing mount unf single mounting facility thread series
Used on 1440-01-087-9844 launching station,guided missile,semitrailer mounted. 2a thread class left-hand 1.685" overall length 1.180" overall width 18 thread quantity per inch unef thread series
Used on piloted aircraft,special or combinations of types,special or combination of purposes an/asq-t. 2a thread class right-hand 2.164" overall length 16 thread quantity per inch un thread series