"ALUMINUM ALLOY QQ-A-268-T4,SURFACE TREATMENT ANODIZED BPS FW4001,DIM.,0.780 IN. MIN,0.790 IN. MAX O/A LG,0.553 IN. MIN,0.555 IN. MAX O/A OD,0.301 IN. MIN,0.308 IN. MAX ID,ONE OD GROOVE 0.110 IN. FROM LEFT AND RIGHT ENDS 0.125 IN. MIN,0.130 IN. MAX W BY 0.3975 IN. MIN,0.3995 IN. MAX DIA,LEFT AND RIGHT ENDS CHAMFERED 45.0 DEGBY 0.075 IN. LG,MAX SURFACE FINISH 63 MICROINCHES AA O/A"