MRC:
A listing of those major components,outside the scope of an item of supply to be cataloged,as indicated by the name of the manufacturer,and the name and number of the item as identified by the manufacturer,and the number of each.AJKD
Nonsupply Items And Quantities:
Un 12 hex nut 1; serrated locking ring 1; unf screw cap socket head 2
MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
Nut thread size 3.480in, rh thread direction, 4.875in width across flats; locking ring 4.185 od, 3.483 id; screw 5/16in thread dia, rh thread direction, 1/2in thread length, 1/2in fastener length, button head, internal hex drive