Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 505X1 found under Loop Strap Fastener by American Cord And Webbing Co Inc. The National Stock Number assigned to this part is 5340009543911, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 505X1.