Matl al, 6061 temp t6 per qq-a-225/8, black anodic coating per 580-0024-000 on knurled surface, 1.1875 porm .0040 in. Diameter with 4 slots .031 wide at 90 deg.Porm 1 degrees apart, with .128 in., .003 porm .001 in. Diameter holes 2 places unevenly spaced, first end, .1877 to .1855 in. Dia, .016 typ 2 place, .100 in. H, second end