MRC:
Characteristics or qualities of an item,not covered in any other requirement,which are considered essential information for one or more functions excluding nsn assignment.SUPP
Supplementary Features:
Prefabricated, knocked down, steel arc type aircraft shelter, complete w/hand and power tools necessary for erection of building, fabreicated from corrugated, galvanized steel sheets .1255 in. Thick, base channels .1793 in.Thick and equipped w/bolts, nuts and washers, walk through type/open both ends