Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W73317 found under Retainer Electron T by Remler Co. The National Stock Number assigned to this part is 5960005061295, and the Federal Supply Class is 5960 Electron Tubes And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like W73317.