Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 512C1100 12 found under Retainer Packing by Columbus Jack Corporation. The National Stock Number assigned to this part is 5330016617028, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 512C1100 12.