Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 85FC55M 140 100PSI found under Valve Safety Relief by Curtiss Wright Corp. The National Stock Number assigned to this part is 4820015395193, 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 85FC55M 140 100PSI.