A rigid box usually rectangular in shape. It may have a compression device and/or indexing separators. It is designed to maintain cards, letters, papers and the like in an orderly arrangement.
NSN 5960-00-377-6558
NSN 6145-01-516-7726
NSN 5945-00-261-6899
NSN 5990-01-103-3572
NSN 5905-01-407-3917
NSN 5930-01-386-4220
NSN 6130-01-487-8448
NSN 6610-01-489-0071
NSN 6620-01-068-6224
NSN 5920-01-575-6265
NSN 5835-01-460-6054
NSN 6135-00-112-8637