A full service instrument shop specializing in sales and service of marine compasses. Suppliers of genuine replacement parts for Danforth, Aquameter, Ritchie, Kelvin White, Dirigo and Star compasses

The Constellation Series compass was originally designed in 1947 by the Kelvin White Company, which became known as the Wilfrid O. White Co..The early versions of this compass have a serial number stamped in the top bezel ring, the first two letters of this number on the 5" compasses began with the letters CB. Danforth bought the company in 1961 and continued manufacturing the compasses to this day. This diagram is of the earliest 5" Constellation which was manufactured in this style until the early 1980's when it was updated into what we call the New style 5" Constellation. The clear dome on the 5" Constellation measures 5-3/16" in diameter at the base. The 5" Constellation uses approximately 45 ounces of compass oil. Click on the diagram to enlarge the schematic. The key number in the diagram is the first number in the order number. 5danconpart 5" Compass Oil PackOne Quart and One pint of Ritchie Compass Oil. Enough Oil to fill the 5" Globemaster or the Danforth 5" Constellation 5G-0000$51.00 5" Dial Assembly, Old StyleThis will not fit the newest version of the 5" Constellation, some changes would have to be made to the pan assembly 1-A9882$345.00Graduations: 5 Degree2 Degree with Points A9963 Pivot w/ retainer "A"Used in Old Style 5",6",7",8" Constellations 2-A12315$110.00 2 degree 5" Old Style dial A9965$54.00 5" Old Style Card ( 5 degree) 3-A9887$65.00 Jewel W/PostThe original style jewel post is a straight post only and is inserted into a threaded bushing, that style is no longer available. It was replaced with this version that is a one piece jewel post with bushing. 4-A12782$120.00 5" Magnet and Frame assembly 5-A12685 Retainer-B 6-A9515$12.00 5" Gimbal Ring with Pins 12-A9867$65.00 Lubbers Line Pan Assembly A9878$70.00 Retaining Nut 12-A9521$0.95 Spacer 13-A1423 Knurled Nut 14-A9922 Screw, Light Retaining (4-40 flat head) 17-A12907$0.45 Old Style 5" Low Level Light AssemblyNO Longer Available as an assembly. New style mounts with 2 screws directly into the top ring. See Low Level lighting page for details 18-A12925 Light Retaining Bracket 20-A12566$25.00 Tie Down Screw (4-40 X 7/16" flat head) 21-A9506$0.45 5" Old Style Constellation DomeThe diameter of the dome measures 5-3/16" at the base. The dome sits on the top lip of the bowl and the oring goes around the outside of the dome. 24-A9785$75.00 5" Old Style Oring 23-A12372$19.00 Screw, Light Bracket Retaining (4-40 fillister head) 25-A691$0.45 5" Lubbers Line Pan and Gimbal ring (Balanced without dial) 26-A14470A$146.00 Filler Plug gasketThis filler plug gasket is used on 6 of the Constellation compasses. 4"(Key#29), 5" old style(Key#27), 5" New Style(Key#30), 6"(Key#27), 7"(Key#27), and the 8" Constellation A9504$4.40 Filler Plug (Brass) 28-A9860$18.00 Diaphram , Expansion (4" diameter) Used on 5" and 6 " Constellations6" Constellations made prior to approximately 1980 used a larger Diaphram (4.5" in diameter) 30-A12386$53.00 Expansion Retaining Screw (6-32 fillister head) 32-A9995$0.45 Expansion Retaining Ring (5" Old Style & 6" New Style)This diaphram retainer is used on the old style 5" Constellations as well as the new style 6" Constellations that have a 3-7/8" diaphram 32-A13002$42.00