Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E-284 PIECE 20 found under Tubing Nonmetallic by Clark Reliance Corporation. The National Stock Number assigned to this part is 4710000871644, 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 E-284 PIECE 20.