Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6443B NON-ASBESTOS found under Gasket by Curtiss Wright Electro Mechanical Corporation Div Steam And Air Solutions. The National Stock Number assigned to this part is 5330014394966, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6443B NON-ASBESTOS.