Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CH1-5000-137 found under Ring Retaining by Flowserve Corporation. The National Stock Number assigned to this part is 5325014345526, 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 CH1-5000-137.