Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W6502B found under Plug Pipe by Waterous Company. The National Stock Number assigned to this part is 4730000113175, 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 W6502B.