Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number L492 80 found under Coupling Half Shaft by Ulstein Bergen A S. The National Stock Number assigned to this part is 3010013384595, 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 L492 80.