Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 859410-1 found under Retainer Helical Compression Spr by Honeywell Aerospace. The National Stock Number assigned to this part is 5340001357916, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 859410-1.