"NSN USED TO PURCHASE A MINIMUM OF 40CONTAINRS TO A MAXIMUM OF 79 CONTAINRS;CERTIFICATION PWA 1302,GE B50TF175 AND AMS 7879;RC 50-55 MINIMUM HARDNESS;5000 PSI MINIMUM STRENGTH;FINISHED BY WET SANDING;PARTICULARLY SUITED FOR PRODUCING THIN, VERY SMOOTH AS SPRAYED COATINGS"