This specification covers one grade of polytetrafluoroethylene in the form of molded rods, tubes, and shapes. This specification does not apply to rods and tubes over 12 in. (305 mm) in dimension parallel to the direction of applied molding pressure, rods less than 0.750 in. (19.05 mm in diameter, and tubes having wall thickness less than 0.500 in. (12.70 mm).
SAE AMS3668A-1976 history
2011SAE AMS3668E-2011 Polytetrafluoroethylene (PTFE) Moldings, Premium Grade, As Sintered
2011SAE AMS3668B-2011 POLYTETRAFLUOROETHYLENE MOLDINGS Premium Grade, As Sintered
2010SAE AMS3668D-2010 Polytetrafluoroethylene (PTFE) Moldings, Premium Grade, As Sintered
2003SAE AMS3668C-2003 Polytetrafluoroethylene (PTFE) Moldings Premium Grade, As Sintered
1994SAE AMS3668C-1994 Polytetrafluoroethylene (PTFE) Moldings, Premium Grade, As Sintered
1976SAE AMS3668A-1976 POLYTETRAFLUOROETHYLENE MOLDINGS Premium Grade, As Sintered
1967SAE AMS3668-1967 POLYTETRAFLUOROETHYLENE MOLDINGS Premium Grade, As Sintered