Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9955-000-002 ITEM 10 found under Timer Assembly by Acorn Engineering Company. The National Stock Number assigned to this part is 4510015016019, 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 9955-000-002 ITEM 10.