Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F-15502 PC 19-31 found under Ring Retaining by Teikoku Usa Inc. The National Stock Number assigned to this part is 5325012190735, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like F-15502 PC 19-31.