Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RW3 820434-1 found under Lock And Keys by David Brown Special Products Ltd. The National Stock Number assigned to this part is 3010011963820, 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 RW3 820434-1.