Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MIL-B-117 TY1CLEST1 found under Envelope Packaging by General Services Administration. The National Stock Number assigned to this part is 8105000554020, and the Federal Supply Class is 8105 Bags And Sacks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MIL-B-117 TY1CLEST1.