2b thread class right-hand 1.295" overall length 0.938" overall width 24 thread quantity per inch includes compression ring nickel surface treated angle type unef thread series
2b thread class right-hand any acceptable overall length any acceptable overall width 24 thread quantity per inch cadmium surface treated straight type w/cable clamp uns thread series
2a single mounting facility thread class 0.437" single mounting facility thread length 3.122" overall length tap, circular, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.250" single mounting facility thread length 1.323" overall length snap or line unf single mounting facility thread series
2a single mounting facility thread class 6.947" overall length 2.500" overall width 20 single mounting facility thread quantity per inch item must comply with requirements of desc production standard no. LO3359; for navy nuclear propulsion plant products only tap, circuit selector unc single mounting facility thread series