Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HDC-5C-140-OCC found under Transmission Hydrau by Harmonic Drive Llc. The National Stock Number assigned to this part is 2520011163304, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HDC-5C-140-OCC.