Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HM029-093-21 found under Hose Assemblymetallic by Robertson Fuel Systemsllc. The National Stock Number assigned to this part is 4720016793508, 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 HM029-093-21.