Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DE-B-4134 REV C found under Housing Mechanical by Federal Aviation Administration. The National Stock Number assigned to this part is 3040016122204, 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 DE-B-4134 REV C.