Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RW2 820246-1 found under Collar Shaft by David Brown Gear Systems Limited. The National Stock Number assigned to this part is 3040012031046, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RW2 820246-1.