"NSN USED TO PURCHASE A MINIMUM OF 1 CONTAINER TO A MAXIMUM OF 2 CONTAINERS;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 WITH SILICON-CARBIDE WHEELS;NICKEL-CHROMINUM-ALUNIMUM-YTTRIUM ALLOYS THAT PROVIDES OUTSTANDING RESISTANCE TO OXIDATION AND CORROSION RESISTANCE IN ENVIROMENTS UP TO 1800DEG (F).MATERIALS USED PRIMARILY USED FOR BOND-COATS IN THERMAL BARRIER COATINGS AND ALSO SHOW PROMISING RESULTS IN PROTECTING BOILER TUBE WALLS FROM CORROSION AND SULFIDATION/OXIDATION"