Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XS315-5 found under Ring Retaining by Rca Corp Government And Commercial. The National Stock Number assigned to this part is 5325008037311, 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 XS315-5.