Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 339 05000 000 found under Rubber Insert by Marley Cooling Tower Co The. The National Stock Number assigned to this part is 5365011894010, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 339 05000 000.