Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C58449-3PC56 found under Seat by Westinghouse Air Brake Technologies. The National Stock Number assigned to this part is 4310001436811, and the Federal Supply Class is 4310 Compressors And Vacuum Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like C58449-3PC56.