Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MBEU1957GRU5 found under Shaft Shouldered by Martin Baker America Inc. The National Stock Number assigned to this part is 3040001840306, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MBEU1957GRU5.