Springfield 2-7/8-Inch Heavy Duty Mainstay with Swivel

The Springfield heavy-duty mainstay pedestal system gives a rigid marine seat-support foundation for larger and faster recreational boats. Its anodized aluminum post and robust base construction are built to resist corrosion while keeping the seat firmly supported under normal marine operating loads.

Depending on the model, the assembly combines height adjustment, swivel or slide movement, and locking hardware so the operator can position the seat around the helm and then secure it for operation. Keyed post construction helps control unwanted rotation, while the substantial base spreads loads into the supporting deck structure.

Confirm the exact post diameter, height range, included swivel or slide, seat bolt pattern, base dimensions, deck strength, and intended application before installation. Use appropriate backing and corrosion-resistant fasteners where required, fully engage all locks before operating the boat, and inspect the pedestal periodically for movement or wear.

• Heavy-duty aluminum construction creates a rigid foundation for the helm seat.
• Anodized aluminum components are suited to repeated boat exposure.
• Compatible adjustment, slide, or swivel functions help tune operator placement.
• Locking hardware helps prevent unwanted movement once the seat is adjusted.

More options in our seats, pedestals & slides.