Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 99140250 found under Y Branch by Premier Copper Division Of W And O. The National Stock Number assigned to this part is 4730015515307, 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 99140250.