Lewmar Anchor Swivel SWIVEL312F, Fixed Swivel for 1/4 Inch and 5/16 Inch Chain

The Lewmar SWIVEL312F is a fixed anchor swivel built for boats running 1/4 inch or 5/16 inch anchor chain. It attaches at the point where rope rode meets chain rode, giving a smooth, snag-free transition as the rode runs through the windlass gypsy. The swivel is calibrated for even pitch, so it feeds consistently through the gypsy wheel without binding or jumping, which keeps anchoring and retrieval smooth and predictable.

This swivel is designed to complement the rope-to-chain gypsies fitted to Lewmar windlasses, making it a natural match for boats already running Lewmar deck gear, while also serving any anchor rode set up with 1/4 inch or 5/16 inch chain. It is built from plastic for a lightweight, corrosion-resistant fitting at the rope-chain splice point. The SWIVEL312F is sold for use in the USA only.

Specifications

• Brand: Lewmar
• Manufacturer Part Number: SWIVEL312F
• Product Type: Anchor Swivel (Fixed)
• Chain Compatibility: 1/4 inch and 5/16 inch chain
• Compatible Groove Diameter: 0.25 inches
• Material: Plastic
• Weight: 1 pound
• Availability: USA only

Fitment

Designed to complement the rope-chain gypsies fitted to Lewmar windlasses; suited to anchor rodes using 1/4 inch or 5/16 inch chain.

Replaces (OEM)

No OEM cross-reference numbers are listed for this part.

Frequently Asked Questions

What chain sizes does the Lewmar SWIVEL312F fit? The SWIVEL312F is a fixed anchor swivel sized for 1/4 inch and 5/16 inch chain.

Is this swivel fixed or does it rotate freely? It is a fixed swivel design, part number SWIVEL312F, rather than a free-spinning swivel.

What is the SWIVEL312F made of? Plastic. The Lewmar SWIVEL312F uses a plastic construction rather than metal.

How much does the SWIVEL312F weigh? 1 pound, which is the listed weight for the Lewmar SWIVEL312F anchor swivel.

Will this swivel work with my windlass gypsy? Yes, for 1/4 inch and 5/16 inch chain setups, since the SWIVEL312F is designed to complement the rope-chain gypsies fitted to Lewmar windlasses.

What does 'calibrated for even pitch' mean for this swivel? It means the SWIVEL312F is sized so the rope-to-chain transition feeds through the gypsy wheel at a consistent pitch, avoiding binding or jumping as the rode runs in and out.

Is the SWIVEL312F sold outside the USA? No, the Lewmar SWIVEL312F is sold for use in the USA only.

What is the Compatible Groove Diameter spec on this listing? 0.25 inches, which corresponds to the swivel's fit for 1/4 inch chain.

Does the SWIVEL312F fit larger chain like 3/8 or 1/2 inch? No. The SWIVEL312F is sized for 1/4 inch and 5/16 inch chain only; Lewmar's SWIVEL500F is the separate part number for 3/8 inch, 1/2 inch, and 7/16 inch chain.

What is included when I order the SWIVEL312F? One Lewmar SWIVEL312F fixed anchor swivel, a single-piece unit.