"NSN IS USED TO PURCHASE A MINIMUM OF 20CONTAINRS TO A MAXIMUM OF 59 CONTAINERS;CR C 25(NI 20 CR),SPHEROIDAL,AGGLOMERATED AND DENSIFIED;-45+11 UM (-325 MESH +11 UM);CERTIFICATION GE B50TF263,CLASS A;GOOD SLIDING PROPERTIES.PRODUCES DENSE EROSION AND CORROSION RESISTANT COATINGS"