| GENERAL CHARACTERISTICS ITEM DESCRIPTION | LOW CARBON STEEL BACK,MIDDLE LAYER OF THERMAL CONDUCTIVE POROUS BRONZE FILLED WITH A MIXTURE OF POLYTETRAFLUOROETHYLENE RESIN WITH A FINE LEAD POWDER AND OVERLAY (APPROX .001 THK) OF THE SAME POLYTETRAFLUOROETHYLENE LEAD MIXTURE; 2.438 OD REF,2.250 ID REF,0.480 IN. MIN,0.500 IN. MAX THK O/A DIMS |