0.567" hole diameter 0.880" outside diameter 0.055" material thickness no internal key; 2 keys equally spaced on washer face, 0.114 in. wide by 0.057 in. high; 56 equally spaced serrations on face opposite keys cadmium surface treated internal prebent key
0.875" hole diameter 1.367" outside diameter 0.322" material thickness outside edges of both surfaces chamfered 0.030 in. porm 0.010 in. by 45 deg porm 1/2 deg. anodize surface treated recessed both sides
3b thread class right-hand 8 thread quantity per inch item is a non-aviation critical safety item (csi) whose failure will result in serious damage to equipment or serious injury or death to personnel.
3b thread class right-hand 16 thread quantity per inch 54 holes, 0.084 in. min 0.094 in. max dia, from base to bottom of inside groove beyond threads; inside diameter 4.960 in. min, 4.970 in. max, unthreaded portion; external groove, 0.050 in. min, 0.070 in. max w; 5.390 in. min, 5.410 in. max od, drive side, at end of chamfer; 10 drive slots, 0.490 in. min, 0.510 in. max w; radial holes ctr 0.275 in. fm base; longitudinal holes in groups of three silver surface treated
1.580" hole diameter 2.370" outside diameter 0.130" material thickness i/d rounded at 0.250 in. nom radius, two 0.290 in. dia holes on face equally spaced on 1.980 in. bolt circle dia anodize surface treated convex
