"STEEL MIL-S-8844,CADMIUM AND CHROMIUM PLATE FPS-1006,16.550 IN. O/A,3.125 IN. O/A OD,BORE THRU 1.670 IN. ID,COUNTER BORE 1.750 IN. ID 9.680 IN. DEEP,COUNTER BORE 2.000 IN. ID 2.200 IN. DEEP,2.250-16 UNF-3A THD 1.144 IN. LG,AS NOTED MACHINED SURFACES 16.0 63.0 AND 125.0 MICROINCH FINISH,HEAT TREAT 260000 TO 280000 PSI PER FPS-1030,AS NOTED SHOT PEEN"