| GENERAL CHARACTERISTICS ITEM DESCRIPTION | STEEL ALLOY 4340 PER MIL-S-5000 COND C; COAT WITH ELECTROLESS NICKEL 0-001 THICK PER MIL-C-26074 CLASS 1 GRADE A EXCEPT THDS; FOUR HOLES TO HAVE 0.0002 TO 0.0003 THK COATING; HEAT TREAT TO OBTAIN BRINELL HARDNESS OF 270-310 (RC 28-34) FINISH WITH 125 MICROINCHES; FOUR HOLES NO 38-0.1015 DRILL AND TAP FOR 5-40 UNC-2B,SOC HD CAP SCRS EQUALLY SPACED ON 0.750 IN.; 1.059 IN. DIA,0.188 IN. THK; 0.314 IN. ID HOLE |