Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 17G240231-13 found under Chain Fastener Flat by Boeing Aircraft. The National Stock Number assigned to this part is 4030015117565, and the Federal Supply Class is 4030 Fittings For Rope Cable And Chain. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 17G240231-13.