Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K29 18669 51 found under Tube Metallic by Klinge Corporation. The National Stock Number assigned to this part is 4710016074104, and the Federal Supply Class is 4710 Pipe Tube And Rigid Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like K29 18669 51.