Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 953504-478 found under Screw by Rolls Royce Canada Ltd. The National Stock Number assigned to this part is 5305011591498, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 953504-478.