Ritchie - Navigator Compass - Flush Mount - Black - FN-203. Navigator Compass Features:. 4 1/2" CombiDamp Dial with Large Numerals. Easily Installed, Fits 4.75" (12.06 cm) to 5.125" (13.02 cm) Mounting Hole. Exclusive Built-in Green NiteVu Night Illumination. Built-in Compensators to Easily Adjust for Deviation. Scientifically Matched Sapphire Jewel and Hardened Steel Pivot Dial Movement. Powerful DirectiveForce Magnets for Fast Heading Lock-on. Movable Sun Shield. 45 Degree Lubber Lines. High Temperature Construction for Extended Operating Range. Custom Fitted Protective Covers Available. 100% Repairable. Exclusive 5-Year Ritchie Warranty. Approx. Shipping Weight: 2 lbs 10 oz (1.19 kg). Notes:. 12 volt lighting standard - 24 & 32 volt lighting options are available.