Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KNKL0440J found under Insert Screw Thread by Siemens Corp. The National Stock Number assigned to this part is 5325007931731, 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 KNKL0440J.