"NSN USED TO PURCHASE A MINIMUM OF 16CONTAINRS TO A MAXIMUM OF 39CONTAINERS;CERTIFICATION PWA 1349,EMS 52432 CLASS XI,AVCO M 3955D AND RR 9507/15;RW 20-30 HARDNESS;1750 PSI MINIMUM STRENGTH;MACHINES EASILY W/HIGH SPEED STEEL OR CARBIDE TOOLS;BLENDED MIXTURE OF PREMIUM SILICON-ALUMINUM ALLOY (PAC901) AND POLYAMIDE (PAC904) POWDERS ESPECIALLY DEVELOPED TO PRODUCE LONG-LIVED CLEARANCE CONTROL COATINGS FOR AIRCRAFT ENGINE APPLICATIONS.COATINGS EXHIBIT HIGH DEGREE OF ABRADABILITY WHICH WHEN RUBBED, CAUSE NO APPRECIABLE WEAR"