Used on fighter aircraft-first (f18 e/f). 2b thread class right-hand 40 thread quantity per inch navy) socket, plug-in, electronic component, for 10 ampere, 4 pdt relays unc thread series
2a first mounting facility thread class 0.225" first mounting facility thread length 1.718" overall length 1.025" overall width mfg name - relay, electromagnetic, 4pdt, low level to 10 amperes, permanent magnet drive, hermetically sealed, ac coil; material is cres unc first mounting facility thread series
2a first mounting facility thread class 0.225" single mounting facility thread length 1.718" overall length 1.025" overall width mfg name - relay, electromagnetic, 3pdt, 25 amperes, permanent magnet drive, hermetically sealed, transient suppressed dc coil; material is cres unc first mounting facility thread series
2a single mounting facility thread class 0.186" first mounting facility thread length 1.280" overall length 0.410" overall width mfg name - relay, electromagnetic, dpdt, low level to 5 amperes, permanent magnet drive, hermetically sealed, transient suppressed dc coil; material is cres unc single mounting facility thread series