"DIAL:BLK NO.37038 WITH WHT NO.37875 MARKINGS. ARC 0-5G/M3; WHITE NO.37875 WITH BLK NO.37038 MARKINGS.ARC .25-1.0G/M3 YELLOW NO.23655 WITH BLK NO.37038 MARKINGS. ARC 1.0-2G/M3 RED NO.21105 WITH BLK NO.37038 MARKINGS. POINTER WHT NO.37875. FLAG RED NO.38905 WITH BLK NO.37038 MARKING. BEZEL BLK NO.37038. ALLOW 3 ADDITIONAL INCH TO OVERALL LENGTH FOR CONNECTOR MATING CONNECTOR AND CABLE. DIA 1.932, FACE DIA 2.000 DEPTH .219."