Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 440R113CP found under Retainer Packing by Treadwell Corporation. The National Stock Number assigned to this part is 5330000142081, 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 440R113CP.