Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CH5-2803 found under Bearing Plain Spherical by Marine Electronics Inc. The National Stock Number assigned to this part is 3120011750594, 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 CH5-2803.