Used on 1520-01-125-5476 helicopter,observation. 2b thread class right-hand 1.641" overall width 18 thread quantity per inch emp protective cadmium surface treated angle type unef thread series
Used on 1520-01-125-5476 helicopter,observation. 2b thread class right-hand 1.406" overall width 20 thread quantity per inch emp protective cadmium surface treated angle type unef thread series
2a single mounting facility thread class 0.312" single mounting facility thread length circular wafer, bushing mount unef single mounting facility thread series