"NSN USED TO PURCHASE A MINIMUM OF 16CONTAINRS TO A MAXIMUM OF 39CONTAINERS;CERTIFICATION PWA 1335,GE B50TF92 AND AVCO M 3962A;RH 85-95 HARDNESS;2000 PSI MINIMUM STRENGTH;BEST FINISHES WITH A CARBIDE TOOL;POWDER OF ALUMINUM ALLOYED W/12% SILICON.PRODUCES COATINGS WHICH ARE HARDER AND SLIGHTLY DENSER BUT SOMEWHAT LESS CORROSION-RESISTANT THAN PAC19 OR 19NS.USEFUL FOR REPAIR OF WORN OR MISMATCHED ALUMINUM OR MAGNESIUM SUBSTRATES"