Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number J49B0012-1 found under Plug by Mcdonnell Douglas. The National Stock Number assigned to this part is 4730013670327, 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 J49B0012-1.