Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FLEX-GUARD 3 BLUE 169 found under Tubing Nonmetallic by U S Netting Inc. The National Stock Number assigned to this part is 4720012709615, 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 FLEX-GUARD 3 BLUE 169.