Bomar Ports & Port Parts

Bomar Ports and Port Parts Bomar Ports and Hatches are commonly found on a wide variety of US built yachts since 1971. While they now manufacture a much wider range of Ports in a variety of materials, their original Cast Aluminum C200 series Ports are still amongst the best and strongest available anywhere.


Bomar Ports Bomar Ports are available in the original Cast Aluminum C200 series, as well as a variety of other styles in a wide range of sizes. For replacement Ports please contact us with Outside (maximum) Dimensions of the interior Finishing Ring and details.


Bomar Port Parts Commonly requested replacement parts for a variety of Bomar Ports are listed below. For parts not listed please contact us with measurements and details.
Female Knob for 5/16" Stud: Bom P100-08: Black plastic Knob is threaded for standard 5/16" Dog stud. Used on a variety of Cast Bomar Ports and Hatches, fluted Knob is 1 3/4" (45mm) OD x 1" high, threaded for a 5/16-18 stud.
Female Knob for 3/8" Stud: Bom P100-07: Black plastic Knob is threaded for standard 3/8" Dog stud. Used on a variety of Cast Bomar Ports and Hatches, fluted Knob is 1 3/4" (45mm) OD x 1" high, threaded for a 3/8-16 stud.
Male Knob w/ 5/16" Screw: Bom P100-06: Black plastic Knob has integral 5/16" SS threaded screw. Used on a variety of Cast Bomar Ports and Hatches, fluted Knob is 1 3/4" (45mm) OD x 1" high, 5/16-18 screw is 1" long.
Dog Screw - 5/16": Bom P100-08S: Dog Screw has 5/16" thread with a 3/16" cross hole. Aluminum Dog Screw is (maximum) 2 1/8" (54mm) long. Used on a variety of Cast Bomar Ports and Hatches.

Gasket for Bomar C200 series Cast Ports: Bom P100-52G:
Black rubber Gasket is used on all Bomar C200 series Cast Ports. Round profile Gasket is 9/16" (14mm) OD, and incorporates a self-adhesive strip. Sold by the foot.
Gasket Glue for Bomar Hatches & Ports: Bom G-GGlue: Special Gasket Glue is used for Gasket attachment on all Extruded Bomar Hatches and Ports. Enough Glue is included for re-gasketing 2 mid-size Hatches or 4-5 Ports.

Fly (mosquito) Screens for Ports Flyscreens or Mosquito Screens for most Bomar Ports are available on special order. Please contact us with measurements and details.

Replacement Glass (Acrylic) for Ports Replacement Glass (Acrylic) Lenses for most Bomar Ports are available on special order. Please contact us with measurements and details.

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