MRC:
A recording of the physical,functional,and performance characteristics for an item of supply.TEXT
General Description:
Stainless steel type 420f astm a 582; chrome plate per qq-c-320 class 2a (.0002-.0006 thk); heat treat per mil.H-6875 to 48-52 rc; 1.375-8n-2a diameter threads; 2.430 in. Min, 2.450 in. Maximum lg; 1.030 in. Lg of thds
MRC:
A feature of the item of supply which must be specifically recorded when the reference number covers a range of items.ZZZY
Reference Number Differentiating Characteristics:
Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications