Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 205-80MM PN6 found under Seat Valve by R T Valvole Industriali Srl. The National Stock Number assigned to this part is 4820151452069, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 205-80MM PN6.