Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ST8193-1 found under Ring Retaining by Servo Products Co. The National Stock Number assigned to this part is 5325000657463, 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 ST8193-1.