6acetal plastic per federal specification l-p-392; o/a dim. 0.515 to 0.535 in. Lg; 0.225 in. Left side w, 0.030 to 0.060 taper top and bottom right side w; 2 holes, left side hole 0.092 in. Dia, right side hole 0.098 to 0.099 in. Diameter thru, center to center 0.247 in.; left side thk 0.135 to 0.155 in. W/top edge taper downward 0.020 to 0.040 in. At 18 to22 degs; right side thk 0.065 in. W/pin, dowel, p/n 39a102-04 extendind downward for a lg 0.140 in., distance center to center between dowel and right sidehole 0.135 in.
