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 4140-01-496-4109
NSN 5975-01-417-6799
NSN 6610-00-575-7933
NSN 5925-01-157-6632
NSN 6645-01-280-0252
NSN 4140-00-941-4335
NSN 6220-01-644-8366
NSN 6685-01-004-1888
NSN 5950-00-906-4040
NSN 6145-01-641-7703
NSN 5999-01-431-3365
NSN 5975-01-177-5688