"NSN USED TO PURCHASE A MINIMUM OF 80CONTAINRS TO A MAXIMUM OF 159CONTAINRS;CERTIFICATION PWA 1352-2;NICKEL CLAD CARBON GRAPHITE CORE MATERIAL OVERLAYED WITH NICKEL.CHEMISTRY IS 15% CARBON, 85% NICKEL.USEFUL FOR PRODUCING AIRCEAFT CLEARANCE COATINGS SUITABLE FOR OPERATION TO 900DEG (F)"