Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 17B-6400 found under by Insta Foam Products Inc. The National Stock Number assigned to this part is 8135011060373, and the Federal Supply Class is 8135 Packaging And Packing Bulk Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 17B-6400.