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Lewmar Low Profile Hatch Specifications

Low Profile Hatch

Best mid range hatch in the business.

The Low Profile Hatch has soft styling and sleek looks, ideal for use on a powerboat. Smaller ventilation hatches are suitable for any deck location on sailboats, while the larger sizes can be used as a foredeck hatches on smaller to midsize yachts.

Outside handles allow the hatch to be opened from on deck if it is not locked
Low profile hatches open up to 180 degrees (round hatches open to 170 degrees)
Friction levers hold the lid open in any position up to 95 degrees
Anodized aluminum frame for corrosion resistance
Curved upper frame profile for strength as well as modern styling
Available in Round and D-Hatch configuration

Sizing Chart:

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

Part No. Friction Lever Lid	Part No. Hatch with Stay	Size	Overall Dimensions										Cut-out Dimensions						Weight		Acrylic Window Thickness
			LOWER FRAME FLANGE		X LENGTH		Y WIDTH		Z HEIGHT		R RADII		X1 WIDTH		Y1 LENGTH		R1 RADII		Weight		Acrylic Window Thickness
			mm	in	mm	in	mm	in	mm	in	mm	in	mm	in	mm	in	mm	in	kg	lb	mm	in
39900030		0	15	9/16	281	11 1/16	281	1 11/16	25	1	72.5	2 7/8	211	8 5/16	211	8 15/16	42.5	1 11/16	1.6	3.5	8	5/16
39903030		3	15	9/16	246	9 11/16	301	11 7/8	25	1	72.5	2 7/8	176	6 15/16	231	9 1/8	42.5	1 11/16	1.6	3.5	8	5/16
39910030	399100303	10	15	9/16	330	13	330	13	25	1	72.5	2 7/8	260	10 1/4	260	10 1/4	42.5	1 11/16	2.2	4.9	8	5/16
39920030		20	15	9/16	272	10 11/16	417	16 7/16	25	1	72.5	2 7/8	202	7 15/16	347	13 11/16	42.5	1 11/16	2.3	5.1	8	5/16
39930030	399300303	30	15	9/16	397	15 5/8	527	20 3/4	25	1	72.5	2 7/8	327	12 7/8	457	18	42.5	1 11/16	4.2	9.3	8	5/16
39940030	399400303	40	15	9/16	491	19 5/16	491	19 5/16	25	1	72.5	2 7/8	421	16 9/16	421	16 9/16	42.5	1 11/16	4.6	10.1	8	5/16
39941030		41	15	9/16	246	9 11/16	491	20 3/16	25	1	72.5	2 7/8	176	6 15/16	421	16 9/16	42.5	1 11/16	2.5	5.5	8	5/16
39944030	399440303	44	15	9/16	512	20 3/16	512	22 11/16	25	1	72.5	2 7/8	442	17 3/8	442	17 3/8	42.5	1 11/16	4.8	10.6	8	5/16
39950030	399500303	50	15	9/16	447	17 5/8	577	22 11/16	25	1	72.5	2 7/8	377	14 13/16	507	19 15/16	42.5	1 11/16	4.8	10.6	8	5/16
39954030	399540303	54	15	9/16	462	18 3/16	577	22 11/16	25	1	72.5	2 7/8	392	15 7/16	507	19 15/16	42.5	1 11/16	4.9	10.6	8	5/16
39960030	399600303	60	15	9/16	577	22 11/16	577	22 11/16	25	1	72.5	2 7/8	507	19 15/16	507	19 15/16	42.5	1 11/16	6.4	14.1	10	3/8
39965030		65	15	9/16	560	22 11/16	560 min	22 11/16	25	1	72.5	2 7/8	See Drawing Above				42.5	1 11/16	6.5	14.3	10	3/8
39965030		65	15	9/16	560	22 11/16	675 max	26 9/16	25	1	72.5	2 7/8	See Drawing Above				42.5	1 11/16	6.5	14.3	10	3/8

Low Profile Round Hatch

Sizing Chart:

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

Part No. Friction Lever Lid	Size	Overall Dimensions										Cut-out Dimensions		Weight		Acrylic Window Thickness
		LOWER FRAME FLANGE		DIAMETER		Z HEIGHT		HX HINGE LENGTH		HY HINGE WIDTH		DIAMETER 1		Weight		Acrylic Window Thickness
		mm	in	mm	in	mm	in	mm	in	mm	in	mm	in	kg	lb	mm	in
39918030	18	15	9/16	490	19 15/16	25	1	493	19 7/16	141	5 9/16	420	16 9/16	3.8	8.4	8	5/16
39903030	22	15	9/16	588	23 1/8	25	1	591	23 1/4	173	6 13/16	518	20 3/8	5.8	12.8	10	3/8

Low Profile D-Hatch

Sizing Chart:

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

Part No. Self Supporting Lid	Size	LOWER FRAME FLANGE		Overall Dimensions										Cut-out Dimensions				Weight		Acrylic Window Thickness
		LOWER FRAME FLANGE		X LENGTH		Y WIDTH		Z HEIGHT		R RADII		X1 WIDTH		Y1 LENGTH		R1 RADII		Weight		Acrylic Window Thickness
		mm	in	mm	in	mm	in	mm	in	mm	in	mm	in	mm	in	mm	in	kg	lb	mm	in
39951030	51	15	9/16	448	17 5/8	588	23 1/8	25	1	72.5	2 7/8	378	14 7/8	518	20 3/8	42.5	1 11/16	5.5	12.1	8	5/16
30067300	64	15	9/16	500	19 11/16	600	23 5/8	25	1	72.5	2 7/8	430	16 15/16	530	20 7/8	42.5	1 11/16	6.4	14.1	8	5/16