Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Y2800 found under Plug Permanent Tube by Siemens Demag Delaval Turbomachi. The National Stock Number assigned to this part is 4420000821168, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like Y2800.