Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 425256-1 found under Coupling Accumulato by Duhadaway Tool And Die Shop Inc. The National Stock Number assigned to this part is 4730004896255, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 425256-1.