Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HRE4-123 found under Bearing Plain Rod E by U S Bearings And Drives Inc. The National Stock Number assigned to this part is 3120006004371, 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 HRE4-123.