Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 124-4322648 PC28 found under Collar Shaft by Celanese Plastics Co. The National Stock Number assigned to this part is 3040014697962, 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 124-4322648 PC28.