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


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Aquameter Gemini Bulkhead Compass Parts

The Gemini bulkhead compass was originally made by Aquameter Compass Company of New Jersey. Rule Industries took over the Aquameter line in the 1990's. The clear dome on the Gemini compass is 4-1/2" in diameter. Most of the parts for the Gemini are still available. The Gemini takes about 24 ounces of compass fluid to fill it. Click on the diagram to enlarge the image. The parts with prices are listed below by their key number in the diagram.


gembulkpart

3-Light CoverNo Longer Avaialble

171-2-2
4-Red FilterNo Longer Available

171-4
Click to enlarge5-Wire and Socket with 12volt bulb
147-51$18.00
Click to enlarge5-LED LIght (Red)Tube with wireReplaces bulb socket and wire

A14430$24.00
Click to enlarge6- Bulb 12V
80-11$6.50
Click to enlarge7-Wire and Socket w/o Bulb
147-4$12.00
8-Top Bezel Ring With Compensators InstalledCurrently not available

171-50-1
15-Screw (4-40 x 5/8")Uses 4 of these and 4 of # 16-171-11

160-8$0.36
16-Screw (4-40x3/4") Uses 4 of these and 4 #15-160-8

171-11$0.36
17- Nut (4-40) 160-13$0.48
18-Clear 4-1/2" Dome (Bulkhead Mount Only) 171-13$44.00
20-Navigrid DiscNo Longer Available

167-1A-2
21-Dial 178-51-2$40.00
22-Lubbers lines Pan and Gimbal Ring Assy.No Longer Available

160-51-4
23-Lock Washer 160-7$0.36
24-Nut, Pivot Post 160-4$0.48
25- Weight- Pan Counter Balance 175-17-1$4.98
Click to enlarge26- Oring, Dome
160-20$14.00
Click to enlarge27-Bowl
160-25-2$41.00
Click to enlarge Filler Plug Gasket
SH-0039$0.95
28 Filler Plug Screw 160-14$2.80
29-Clamping Ring 171-8-1$22.00
Click to enlarge30-Expansion DiaphramThis diaphram measures 3-3/16" in diameter

160-1-1$34.00
31- Diaphram retaining ring 171-7-2
32- Screw, Expansion Retaining 160-3$0.65
COMPASS FLUIDCOMPASS FLUIDCompass oil

Aquameter Gemini Binnacle and Flush Mount Compass PartsAquameter Gemini Binnacle and Flush Mount Compass PartsThe Gemini compass (4-1/2" clear dome)was manufactured by Aquameter for many years until the Aquameter Compass Company was taken over by Rule Industries. The Gemini was marketed by Rule Industries for a short period of time, until it was modified and became part of the Constellation line of compasses. Most of the important parts are still available. The Gemini compass uses about 24 ounces of compass fluid to fill it. Click on the parts diagram to enlarge the image. Parts with prices are listed below by the key number in the diagram.

gemregpart