Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CL5S found under Tubingnonmetallic by Standard Motor Products. The National Stock Number assigned to this part is 4720013970409, and the Federal Supply Class is 4720 Hose And Flexible Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CL5S.