Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AK 4329 6SZD found under Bearing Washer Thrust by Nash Engineering Company Inc The. The National Stock Number assigned to this part is 3120011010812, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AK 4329 6SZD.