Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ARX-4HSSZ found under Bearing Plain Rod by Morse Industrial Corp. The National Stock Number assigned to this part is 3120011941146, 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 ARX-4HSSZ.