Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 44J20-5 found under Wormshaft Gear by Westinghouse Electric Corp. The National Stock Number assigned to this part is 2010002186302, and the Federal Supply Class is 2010 Ship And Boat Propulsion Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 44J20-5.