MRC:
A recording of the physical,functional,and performance characteristics for an item of supply.TEXT
General Description:
Steel aisi 4140, phosphate surface treatment mil-p-16232 ty m cl 1, metallic hardness rating rockwell c scale 34 to 38, 5.968 in. O/a lg, 0.500 in. 1st step lg, 0.409 in. Min 0.412 in. Maximum 1st step dia, 0.015 in. Lg 45.0 degrees angle 1st step chamfer, 4.970 in. 2nd step lg, 0.379 in. Min 0.382 in. Maximum 2nd step dia, 0.015 in. Lg 45.0 degrees angle 2nd step chamfer, 0.468 in. 3rd step lg, 0.308 in. Min 0.310 in. Maximum 3rd step dia, 0.015 in. Lg 30.0 degrees angle 1st step chamfered end, 0.030 in. Lg 45 degrees angle 3rd step chamfered end, 0.269 in. Min 0.375 in. Maximum undercut dia, 0.046 in. Min 0.049 in. Maximum undercut w, undercut 0.163 in. From end of rod, 0.096 in. Min 0.098 in. Maximum hole dia, 0.163 in. Nom centerline of hole to end, hole countersunk 80.0 degrees min 82.0 degrees maximum 0.125 in. Dia, 1st step 63aa microinch finish, 2nd and 3rd steps 125 microinch finish
