"NSN IS USED TO PURCHASE A MINIMUM OF 60 CONTAINERS AND UP;NI 17CR 4FE 4SI 3.5B 1C,SPHEROIDAL,GAS ATOMIZED;-53 +15 UM (-270 MESH +15 UM),ALLIED SIGNAL FP 5045, TYPE XIX;RC 53-60 HARDNESS;TEXTURE/FINISH AS SPRAYED FINE,GROUND VERY GOOD TO EXCELLENT;COATING NUMBER T15F-10;PRODUCES THIN COATINGS THAT CAN BE FINISHED AFTER FUSING WITH LITTLE STOCK REMOVAL.RECOMMENDED FOR THE MOST SEVERE SERVICE REQUIREMENTS WHEN USED ON BASE MATERIAL WITH FAIRLY HIGH COEFFICIENT OF THERMAL EXPANSION"