Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MBEU38991 found under Spring Helical Compression by Martin Baker Aircraft Co Ltd. The National Stock Number assigned to this part is 5360000050039, and the Federal Supply Class is 5360 Coil Flat Leaf And Wire Springs. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MBEU38991.