Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 29881-13D found under Washer Latch Spring by Crane Company. The National Stock Number assigned to this part is 4810001570947, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 29881-13D.