"NSN IS USED TO PURCHASE A MINIMUM OF 1 CONTAINER TO A MAXIMUM OF 19 CONTAINERS;ZR O 24MG O,ANGULAR/BLOCKY FUSED AND CRUSHED;-53 +11 UM (-270 +11 UM);MAGNESIUM ZIRCONATE.PRODUCES COATINGS HAVING HIGH-TEMPREATURE RESISTANCE TO WEAR BY PARTICLE EROSION,THERMAL SHOCK,CORROSION FROM MOLTEN METALS AND THERMAL STRESS.RECOMMENDED FOR COMBUSTION APPLICATIONS.ABRASIVE WEAR RESISTANT UP TO APPROXIMATELY 1650DEG (F).APPLICATIONS INCLUDE DIESEL ENGINE PISTONS,VALVES,CYLINDER HEADS AND COATINGS FOR CASTING MOLDS AND TROUGHS"