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 6620-01-485-0556
NSN 5920-01-592-5387
NSN 6150-01-597-5917
NSN 6650-01-305-8881
NSN 6220-01-078-5195
NSN 5935-00-691-6106
NSN 5998-00-056-9150
NSN 5998-01-167-2140
NSN 5990-00-193-3028
NSN 6620-00-193-9503
NSN 5915-00-415-1152
NSN 5960-01-271-4820