Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D2-10079-3-4 found under Worm And Wheel by Usm Corp. The National Stock Number assigned to this part is 3020003915953, and the Federal Supply Class is 3020 Gear Pulley Sprocket And Transmission Chain. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D2-10079-3-4.