Springfield Trac-Lock 2-3/8 Inch Non-Locking Seat Swivel, Part 1100031-1

The Springfield Trac-Lock 2-3/8 inch non-locking swivel, part number 1100031-1, is the swivel component of Springfield's Trac-Lock seat mount system for boats. It is built to pair with a 2-3/8 inch diameter seat post and works with any Trac-Lock Taper-Lock base (sold separately), giving the seat smooth rotation on the base while the post handles height adjustment. The swivel is constructed of aluminum for corrosion resistance in a marine environment.

This swivel incorporates Springfield's proprietary posi-lock system, and it is sold as part of a 2-piece package alongside a 2-3/8 inch manual adjustable post with the same posi-lock system, letting the boater set and hold seat height while the swivel manages rotation on the Taper-Lock base. The Trac-Lock seat mount is ABYC Class H-31 classified for fishing seat applications only. A related component in the Trac-Lock line, part 3603825-NS, is sold separately and is not included with this swivel.

Specifications

• Brand: Springfield
• Manufacturer Part Number: 1100031-1
• Post Diameter: 2-3/8 inches
• Swivel Type: Non-locking, Trac-Lock
• Compatible Base: Taper-Lock base (sold separately)
• Locking Mechanism: Posi-lock system
• ABYC Classification: H-31, fishing seats only
• Material: Aluminum
• Item Dimensions: 13.5 x 12.25 x 8.75 inches
• Weight: 1.9 pounds
• UPC: 038132915886

Fitment

Fits any 2-3/8 inch diameter seat post and any Trac-Lock Taper-Lock base (base sold separately). ABYC Class H-31, fishing seats only.

Frequently Asked Questions

What is the Springfield 1100031-1 swivel used for? Part 1100031-1 is the non-locking swivel component of Springfield's Trac-Lock boat seat mount system, allowing the seat to rotate on a Taper-Lock base.

What post diameter does this swivel fit? The Springfield 1100031-1 swivel is built for a 2-3/8 inch diameter seat post.

Does this swivel include the base or post? No. The Springfield 1100031-1 swivel pairs with a Taper-Lock base, which is sold separately, and it is offered in a 2-piece package with a 2-3/8 inch manual adjustable post that also uses Springfield's posi-lock system.

Is the Springfield Trac-Lock swivel locking or non-locking? Part 1100031-1 is a non-locking swivel, meaning it allows free rotation rather than locking the seat into fixed positions.

What is the posi-lock system on this swivel? The posi-lock system is Springfield's proprietary mechanism built into the Trac-Lock swivel and its companion adjustable post to secure the seat components in use.

What material is the Springfield 1100031-1 swivel made from? This swivel is made of aluminum for corrosion resistance in marine use.

Is this swivel rated for all boat seating applications? The Trac-Lock seat mount using swivel 1100031-1 carries an ABYC Class H-31 classification, which is for fishing seats only.

What are the dimensions and weight of this swivel? The Springfield 1100031-1 swivel measures 13.5 x 12.25 x 8.75 inches and weighs 1.9 pounds.

What is part number 3603825-NS in relation to this swivel? Part 3603825-NS is a separate Trac-Lock component that, like the swivel itself, is sold separately from the 2-piece post and swivel package.

Can this swivel be used with any seat post? It is designed specifically for a 2-3/8 inch diameter post and a Taper-Lock base; it is not a universal fit for other post diameters or base types.