Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number J20R1EC CLASS C 2 3 4 INCH found under Hose Nonmetallic by Society Of Automotive Engineers Inc. The National Stock Number assigned to this part is 4720002354142, 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 J20R1EC CLASS C 2 3 4 INCH.