"NSN IS USED TO PURCHASE A MINIMUM OF 60 CONTAINERS AND UP;NI 4.5 AL,CLAD;-90+45 UM (-170+325 MESH);RB 70 +/- HARDNESS;TEXURE/FINISH AS-SPRAYED 450-650,MACHINED 25-40;COATING NUMBERS P450P-10, T450P-10 AND T450P-11;CERTIFICATION MSRR 9507/43;PREMIUM GRADE NICKEL-ALUMINUM COMPOSITE POWDER.PRODUCES COATINGS WHICH NOT ONLY HAVE THE EXCELLENT SELF-BONDING PROPERTIES,BUT ALSO PROVIDE A SIGNIFICANT IMPROVEMENT IN MACHINABILITY.COATINGS CAN BE MACHINED,USING STANDARD CARBIDE TOOLS TO A VERY FINE FINISH"