We Ship Worldwide! | FREE SHIPPING! for US Continental orders over $99. Click for details.

Order Status Login 1-888-756-8883

Shopping Cart

Your cart is currently empty.

FREE SHIPPING! for US Continental orders over $99
click for details

Why get Lewmar Ocean Hatches if you cruise

With its classic style, the Ocean Hatch is one of the most likely hatches to see worldwide. Fitted to thousands of cruising boats, especially in the tropics and higher-temperature climates, to provide ventilation inside the ship.

There are many reasons why boatbuilders worldwide, from 1991 until now, use the Lewmar Ocean series. The first one is its rugged construction and high-profile lid, which provide the ultimate protection against the elements, whatever conditions you might face, ideal for offshore ocean sailing and coastal cruising days. It also has an excellent hinge mechanism where it got a rugged hitch on the backside and then a little counter spring on the inside. They are called friction levers and hold the lid open in any position up to 95°.



Another reason is the anodized aluminum frame and base that prevent corrosion and keep it in perfect condition even for more than ten years.

Additionally, it has opening latches on both inside and outside. Therefore, you can lock it from the outside by pushing down the hatch and turning the latches. It also allows you to lock it so that it is not entirely closed to give you ventilation when you are not on board.

Ocean Hatch Standard Sizes

Sizing Chart

Note: Click on your preferred part number to be redirected to the product.

Part No. Size Lower Frame Overall Dimensions Hinges Cut-out Dimensions Weight

Acrylic

Window Thickness

X LENGTH Y WIDTH Z HEIGHT R RADII HX LENGTH HY WIDTH X1 LENGTH Y1 WIDTH R1 RADII
mm in mm in mm in mm in mm in mm in mm in mm in mm in kg lb mm in
39610050 10 Flat Base Flange 324 12 3/4 324 12 3/4 39.5 1 9/16 75 2 15/16 5 3/16 138 5 7/16 255 10 1/16 255 10 1/16 40 1 9/16 2.26 5.77 10 3/8
39610070 10 Flat Base Flange 324 12 3/4 324 12 3/4 39.5 1 9/16 75 2 15/16 5 3/16 138 5 7/16 260 10 1/4 260 10 1/4 42.5 1 11/16 2.26 5.77 10 3/8
39620050 20 Flat Base Flange 266 10 1/2 411 16 3/16 39.5 1 9/16 69 2 11/16 5 3/16 225 8 7/8 197 7 3/4 342 13 7/16 34 1 5/16 2.74 6.04 10 3/8
39620070 20 Flat Base Flange 266 10 1/2 411 16 3/16 39.5 1 9/16 69 2 11/16 5 3/16 225 8 7/8 202 7 15/16 347 13 11/16 36.5 1 7/16 2.74 6.04 10 3/8
39630050 30 Flat Base Flange 391 15 3/8 521 20 1/2 39.5 1 9/16 75 2 15/16 5 3/16 335 13 3/16 322 12 11/16 452 17 13/16 40 1 9/16 4.5 9.9 10 3/8
39630070 30 Flat Base Flange 391 15 3/8 521 20 1/2 39.5 1 9/16 75 2 15/16 5 3/16 335 13 3/16 327 12 7/8 457 18 42.5 1 11/16 4.5 9.9 10 3/8
39640050 40 Flat Base Flange 485 19 1/8 485 19 1/8 39.5 1 9/16 75 2 15/16 5 3/16 299 11 3/4 416 16 3/8 416 16 3/8 40 1 9/16 4.76 10.5 10 3/8
39640070 40 Flat Base Flange 485 19 1/8 485 19 1/8 39.5 1 9/16 75 2 15/16 5 3/16 299 11 3/4 421 16 9/16 421 16 9/16 42.5 1 11/16 4.76 10.5 10 3/8
39644050 44 Flat Base Flange 509 20 1/16 509 20 1/16 43 1 11/16 76 3 4 3/16 302 11 7/8 437 17 3/16 437 17 3/16 40 1 9/16 5 11 12 1/2
39644070 44 Flat Base Flange 509 20 1/16 509 20 1/16 43 1 11/16 76 3 4 3/16 302 11 7/8 442 17 3/8 442 17 3/8 42.5 1 11/16 5 11 12 1/2
39650050 50 Flat Base Flange 444 17 1/2 574 222 5/8 43 1 11/16 76 3 4 3/16 367 14 7/16 372 14 5/8 502 19 3/4 40 1 9/16 7.3 16.1 12 1/2
39650070 50 Flat Base Flange 444 17 1/2 574 222 5/8 43 1 11/16 76 3 4 3/16 367 14 7/16 377 14 13/16 507 19 15/16 42.5 1 11/16 7.3 16.1 12 1/2
39660050 60 Flat Base Flange 574 22 5/8 574 22 5/8 43 1 11/16 76 3 4 3/16 367 14 7/16 502 19 3/4 502 19 3/4 40 1 9/16 8 17.6 12 1/2
39660070 60 Flat Base Flange 574 22 5/8 574 22 5/8 43 1 11/16 76 3 4 3/16 367 14 7/16 507 19 15/16 507 19 15/16 42.5 1 11/16 8 17.6 12 1/2
39670050 70 Flat Base Flange 694 27 5/16 694 27 5/16 43 1 11/16 76 3 4 3/16 487 19 3/16 622 24 1/2 622 24 1/2 40 1 9/16 10.8 23.8 12 1/2
39670070 70 Flat Base Flange 694 27 5/16 694 27 5/16 43 1 11/16 76 3 4 3/16 487 19 3/16 627 24 11/16 627 24 11/16 42.5 1 11/16 10.8 23.8 12 1/2


Lewmar Ocean Hatches and a full range of spares are available here at MAURIPRO Sailing!

Don't forget to subscribe to our social media channels!