Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EV13500PC56-57 found under Sleeve Compression by Bath Iron Works Corporation. The National Stock Number assigned to this part is 4730007335062, 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 EV13500PC56-57.