Springfield 2-3/8-Inch Mainstay with Locking Swivel

The Springfield 2-3/8-Inch Mainstay with Locking Swivel gives a marine seating support solution for compatible boat seats and Springfield pedestal hardware. Its aluminum or stainless construction, depending on the model, is built to provide a rigid connection between the seat and deck while resisting corrosion in routine marine service.

The fixed-height design creates a consistent seating position without a height-adjustment mechanism, so it is well suited to installations where the desired seat elevation is already known. Compatible locking, swivel, or slide hardware can add the movement required by the specific seating layout.

Confirm post diameter, base system, seat-mount compatibility, height, deck strength, and included versus separately sold components before installation. Use proper backing and corrosion-resistant fasteners where required. Fully engage all pedestal locks before operating the boat and inspect the post, base, and seat hardware periodically for movement or wear.

• The pedestal system creates a dedicated structural connection between the seat and deck.
• Corrosion-resistant materials are selected for repeated boat exposure.
• The fixed-height layout gives a predictable seat position.
• Correct base and seat-mount components create a coordinated pedestal installation.

Worth comparing against our other seats, pedestals & slides.