2b single mounting facility thread class 3.250" overall length 3.000" overall width 24 single mounting facility thread quantity per inch tap, circuit selector unc single mounting facility thread series
Used on 1440-01-272-9956 armament subsystem. 2b thread class right-hand 1.478" overall length 0.348" overall width 56 thread quantity per inch jackscrew type-female unc thread series
Used on 6625-01-165-9406 plug-in unit,electronic test equipment amplifier. 2a thread class right-hand 1.302" overall length 36 thread quantity per inch uns thread series