Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S55-2CD found under Bushing Dry Back He by Cooper Industries Inc. The National Stock Number assigned to this part is 5365005090313, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S55-2CD.