Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3DW-44A found under Coupling Shaft Flex by Hobart Brothers Company. The National Stock Number assigned to this part is 3010004346541, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3DW-44A.