Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R1E02-2511-A1 found under Valve Safety Relief Remote Contr by Parker Hannifin Corporation. The National Stock Number assigned to this part is 4820009276958, 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 R1E02-2511-A1.