Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MRB-040-FFAH-54M-3000 PSI found under Valve Safety Relief by Bosch Automation Technology. The National Stock Number assigned to this part is 4820011637153, 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 MRB-040-FFAH-54M-3000 PSI.