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 5835-01-158-6878
NSN 6110-01-400-4207
NSN 2925-01-599-1901
NSN 6610-01-406-4985
NSN 5935-01-496-5322
NSN 6130-01-169-9009
NSN 6105-00-241-2213
NSN 6645-00-450-2209
NSN 6620-01-277-9325
NSN 5895-00-217-2951
NSN 6135-01-502-5787
NSN 5925-00-188-8678