3b thread class right-hand 32 thread quantity per inch furnished with 3 lobes equally spaced apart; "y" in part number indicates a 1/32 inch oversize identification passivate surface treated unjf thread series
Used on seasprite helicopter, sh-2g. 3b thread class right-hand 32 thread quantity per inch head height: 0.085 in. cadmium surface treated unjf thread series