This specification covers plain rod end bearings@ corrosion resistant steel (CRES) or alloy steel@ which are self-aligning and self-lubricating by incorporating polytetrafluoroethylene (PTFE) in a liner between the ball and race for use in the temperature range -65 to +325 ??(-54 to +163 ??. Classification: Bearings shall be of the following classes@ as specified (see 3.5.4): Class 1 - Externally threaded shank Class 2 - Internally threaded shank