"NSN IS USED TO PURCHASE A MINIMUM OF 1 CONTAINER TO A MAXIMUM OF 19 CONTAINERS;CR O,BLOCKY CHEMICAL PRECIPITATE;-22+5 UM;DENSE,CORROSION RESISTANT COATINGS USED ON PUMP SEAL AREAS,GROUNDS,ROLLS AND WEAR RINGS.RECOMMENDED FOR RESISTANCE TO WEAR BY ABRASIVE GRAINS,HARD SURFACES,PARTICLE EROSION AND CAVIATION ALL AT TEMPREATURES BELOW 1000DEG (F).COATINGS ARE INSOLUBLE IN ACIDS,ALKALIS AND ALCOHOL"