Part Number 2886570

Part Information
Steel 4140 substitute od 8853 ty d grade 1 cl c or steel qq-s-624 comp 4140, o/a lg 2.938 in., o/a w 0.625 in.O/a h 0.688 in., 0.281 in.Dia p 0.008 in. M 0.002 in. Hole counterbored to 0.406 in.Dia p 0.015 in. M 0.005 in. To a depth of 0.438 in. P 0.005 in. M 0.030 in., 1/4-20 unc-3b thd hole through small end and countersunk 90 degrees p 10 degrees m 0 degrees to 0.281 in.Dia p 0.015 in. M 0.005 in., heat treat 35 to 40 rockwell-c, all surfaces finished to 125 arithmetical average, protective coating mil-p-16232 type m class 1 and non-drying type preservative oil solid film lubricant electrofilm lube-lok no. 4396 or equivalent 0.0002 in. To 0.0005 in.Thk, substitute lubricant mil-l-8937;