This SAE Aerospace Standard (AS) covers plain spherical bearings which are self-aligning and self-lubricating by utilizing polytetrafluoroethylene (PTFE in a fabric composite or molded material that is bonded to the inner diameter surface of the race and when specified@ to the bore diameter surface of the ball. These bearings are for use in the temperature range -65 to +325 ??(-54 to +163 ??.