Heavy du type 32 sub stock
An envelope, usually made of a paper product. The face may be plain or preprinted with or without an open or glassine address window. The closure may be a gummed flap or a button and string fastener. When required a smaller envelope may be glued on the right face of the larger envelope. The interior may have a printed opaquing design and/or contain chipboard insert(s). It is designed for mailing correspondence/letters; records, or exposed and developed radiographic film. Excludes envelope, photographic negative; envelope, radiographic film mount, dental; and envelope, transparent.
Classification: Envelopes of paper or paperboard, of a kind used in correspondence
NSN 6150-01-371-7696
NSN 5985-01-530-1202
NSN 5990-00-924-4167
NSN 6135-01-608-2355
NSN 6320-00-456-0836
NSN 5950-00-438-3243
NSN 5990-01-245-7299
NSN 5905-00-026-0162
NSN 5895-01-095-1153
NSN 5935-01-202-8822
NSN 6110-00-106-6587
NSN 5965-01-493-4060