Sea-Dog Gas Filled Lift Spring 321422-1 - 10 Inch Extended Length, 20 Lb Force

The Sea-Dog 321422-1 is a gas filled lift spring designed to hold hatches, display panels, and similar lift-up surfaces open at a controlled rate, rather than letting them slam or drop. It extends to 10 inches with a compressed length of 7 inches, giving a working stroke of 3 inches, and is rated for a 20 pound lift force, so it is sized for lighter hatches and lids rather than heavy compartment covers. The spring uses end fittings of 15 mm and 6 mm diameter at its two ends, allowing it to connect to mounting hardware sized for either fitting. Construction is plastic, keeping the unit lightweight and resistant to the corrosion that can affect metal struts in a marine environment. Each unit is sold individually. The 321422-1 is part of the Sea-Dog lift spring lineup, which spans a range of extended lengths and lift force ratings, so buyers should confirm this exact part number, extended length, and lift force match the hatch or panel being fitted before ordering. Typical applications include boat hatches, storage lids, and other hinged panels that need to be propped open smoothly and held in position without a separate prop rod or latch.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 321422-1
• Lift Force: 20 pounds
• Extended Length: 10 inches
• Compressed Length: 7 inches
• Stroke Length: 3 inches
• End Fitting Diameter (End 1): 15 mm
• End Fitting Diameter (End 2): 6 mm
• Material: Plastic
• Weight: 0.256 pounds
• Package Quantity: 1 each
• UPC: 035514321778

Frequently Asked Questions

What is the lift force rating of the Sea-Dog 321422-1? The 321422-1 is rated for 20 pounds of lift force, meaning it is sized to hold hatches or panels in that weight range open without slamming shut.

How long is this gas lift spring when fully extended? It extends to 10 inches and compresses down to 7 inches, giving a working stroke of 3 inches.

What size are the end fittings on the 321422-1? One end fitting measures 15 mm in diameter and the other measures 6 mm, so mounting hardware should match these two sizes.

What is this lift spring made of? The Sea-Dog 321422-1 is made of plastic, which keeps it lightweight and resistant to corrosion in a marine environment.

How much does the 321422-1 weigh? This gas lift spring weighs 0.256 pounds.

How many lift springs come in a package? The Sea-Dog 321422-1 is packaged and sold as 1 each, a single lift spring per unit.

Will the 321422-1 fit any hatch or lid? Fit depends on matching the 10 inch extended length, 3 inch stroke, and 20 pound lift force to the hatch or panel being supported; Sea-Dog offers other lift springs in different lengths and lift force ratings for larger or smaller applications.

Is the 321422-1 suitable for heavier hatches? It is rated for 20 pounds of lift force, so heavier hatches or covers would need a Sea-Dog lift spring with a higher lift force rating instead.

What is the UPC for this Sea-Dog lift spring? The UPC for the Sea-Dog 321422-1 gas filled lift spring is 035514321778.

Does the 321422-1 need any special tools to install? It mounts using its two end fittings (15 mm and 6 mm diameter), the same way as other gas lift springs, connecting to ball studs or brackets sized to match those fittings.