"NSN USED TO PURCHASE A MINIMUM OF 16CONTAINRS TO A MAXIMUM OF 39 CONTAINRS;CERTIFICATION GE B50TF27;RC 55-60 MINIMUM HARDNESS;5500 PSI MINIMUM STRENGTH;FINISHED BY WET SANDING;SINTERED TUNGSTEN CARBIDE/12% COBALT AGGREGATE POWDER.YIELDS THIN, DENSE HARD COATINGS RESISTANT TO ABRASIVE AND SLIDING WEAR.FOR USE BELOW 1000DEG (F)"