0.233" hole diameter 0.4068" outside diameter 0.085" material thickness navy special project od chamfered both sides 0.010 in. by 45 deg recessed both sides
0.781" hole diameter 1.125" outside diameter 0.062" material thickness no internal key; 2 projections equally spaced on washer face, 0.094 in. wide by 0.031 in. high; 64 equally spaced serrations on face opposite projections cadmium surface treated internal prebent key
Used on w/s: aviation engine test systems (aets); engine, aircraft t-56. 2b thread class right-hand 20 thread quantity per inch cadmium surface treated
4.535" hole diameter 5.625" outside diameter 0.127" material thickness center hole is round with flats 4.390 in. across flats with two tapped holes 0.190-32 nf-2b thd
