Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 140840-1 found under Strap Assembly Tiedown by H Koch And Sons Co. The National Stock Number assigned to this part is 1660009107712, and the Federal Supply Class is 1660 Aircraft Air Conditioning Heating And Pressurizing Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 140840-1.