"NSN USED TO PURCHASE A MINIMUM OF 160 CONTAINERS AND UP;CERTIFICATION GE B50TF192 CLASS A,GE B50TF162 CLASS A,MSRR 9507/48 AND GARRETT 52432 XXI;RB 85 HARDNESS;5500 PSI NOMINAL STRENGTH;WET GRIND W/SILICON-CARBIDE WHEEL;;NICKEL-CHROMINUM-ALUNIMUM-YTTRIUM ALLOYS THAT PROVIDE OUTSTANDING RESISTANCE TO OXIDATION AND CORROSION RESISTANCE IN ENVIROMENTS UP TO 1800DEG (F).USED PRIMARILY FOR BOND-COATS IN THERMAL BARRIER COATINGS AND ALSO PROMISING RESULTS IN PROTECTING BOILER TUBE WALLS FROM CORROSION AND SULFIDATION/OXIDATION"