Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number JK40 found under Ring Retaining by Seeger Orbis Gmbh And Co Ohg. The National Stock Number assigned to this part is 5325121565001, 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 JK40.