"NSN IS USED TO PURCHASE A MINIMUM OF 60 CONTAINERS AND UP;ZR O 24MG O,SPHEROIDAL.HOSP;-90 +11 UM (-170 +11 UM);CERTIFICATION MSRR 9507/21 AND PWA 1333;MAGNESIUM ZIRCONATE.PRODUCES COATINGS HAVING HIGH TEMPREATURE RESISTANCE TO WEAR BY PARTICLE EROSION,THERMAL SHOCK,CORROSION FROM MOLTEN METALS AND THERMAL STRESS.POWDER PARTICLES ARE FREE FLOWING AND SPHERICAL SHAPED.APPLICATIONS INCLUDE DIESEL ENGINE PISTONS,VALVES,CYLINDER HEADS AND COATINGS FOR CASTING MOLDS AND TROUGHS.ABRASIVE WEAR RESISTANT UP TO APPROXIMATELY 1650DEG (F).COATINGS RESIST WETTING AND CORROSIVE EFFECTS OF MOLTEN METAL"