Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2601397 found under Valve Safety Relief by Mechanical Equipment Company Inc. The National Stock Number assigned to this part is 4820002449634, 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 2601397.