Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 004D1222-1 found under Ring Piston by Columbus Jack Corporation. The National Stock Number assigned to this part is 3040013925379, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 004D1222-1.