Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MC-223-9 found under Motor Alternating C by Sears Roebuck And Co. The National Stock Number assigned to this part is 6105011528050, and the Federal Supply Class is 6105 Motors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MC-223-9.