Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 504529-409 found under Safety Strap Dispatcher by Am Safe Inc. The National Stock Number assigned to this part is 1670015429116, and the Federal Supply Class is 1670 Parachutes Aerial Pick Up Delivery Recovery Systems And Cargo Tie Down Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 504529-409.