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 6620-01-415-5803
NSN 5999-01-202-8707
NSN 5990-01-191-9624
NSN 5835-01-550-5094
NSN 5910-00-952-6437
NSN 5975-00-995-9110
NSN 5920-01-470-2854
NSN 5999-01-091-5370
NSN 5990-01-548-3711
NSN 5960-00-675-9373
NSN 5910-01-244-3997
NSN 5990-01-602-6701