two axial keyways 0.107 in. min by 0.111 in. max wide by 0.065 in. min 0.075 in. max deep by 0.380 in. nom long; one end countersunk 79.5 deg min 80.5 deg max to 0.480 in. min 0.490 max dia; other end chamfered 0.050 in. by 45.0 ddeg; external 0.562-18unf-2a thread full length; fluorocarbon dispersion lubricant per mil spec mil-l-60326; heat treated to H1025, 155000 psi tensile per sae spec ams 5643 passivate surface treated
3b thread class right-hand 1.400" thread length 8 thread quantity per inch has internal thread lock passivate surface treated grooved keylock unjc thread series
