MRC:
An indication of the complete nomenclature of the attachment/s/ on the item,and the number of each.CJBJ
Attachment Nomenclature And Quantity:
Bulldozer, earth moving, hydraulic operated, tilting type, outside track frame mtd, w/back rip scarifier teeth-1, ripper, tractor mounting, hydraulic operated-1
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:
As differentiated by attachment nomenclature and quantity