Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 28PA00657-1 found under Hose Assembly Fuel Transfer by Fleet Readiness Center Southeast Div Navy. The National Stock Number assigned to this part is 4720010900077, 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 28PA00657-1.