Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1012953D024-012 found under Ring Center Packing by Boeing Company The. The National Stock Number assigned to this part is 1650002145031, and the Federal Supply Class is 1650 Aircraft Hydraulic Vacuum And De-Icing System Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1012953D024-012.