Springfield 1640404 Spring-Lock Fixed Height Post, 13-1/2 Inch, Stainless Steel

The Springfield 1640404 Spring-Lock Fixed Height Post is a stainless steel boat seat post designed to work with a Non-Locking Spring-Lock mechanism, which is sold separately. Measuring 13-1/2 inches in length with a 1-3/4 inch (1.75 inch) post diameter, it is built for durability in the marine environment, resisting corrosion and wear from long-term exposure to sun and saltwater. The stainless steel construction is intended to hold its finish over time rather than pit or dull the way lower-grade metals can.

This post is a universal-fit component, made to be interchangeable with similar pedestal setups that use a 1.77 inch post, making it a practical option for replacing a worn or damaged post without replacing the entire pedestal assembly. It pairs with a Non-Locking Spring-Lock unit to allow the seat to spring up out of the way for storage or standing, then lock back down into the fixed height position for seated use. It ships as a single post unit.

Specifications

• Brand: Springfield
• Manufacturer Part Number: 1640404
• Height: 13-1/2 inches
• Post Diameter: 1-3/4 inches (1.75 inches)
• Material: Stainless Steel
• Color/Finish: As Shown
• Fit Type: Universal Fit
• Weight: 1.5 pounds
• Compatible With: Non-Locking Spring-Lock (sold separately)
• Quantity: 1 post

Frequently Asked Questions

What is the Springfield 1640404 Spring-Lock post made of? It is made of stainless steel, chosen for its resistance to corrosion in marine environments and its ability to hold a consistent look over years of use.

Does the 1640404 post include the Spring-Lock mechanism? No, the 1640404 is the fixed height post only; it is designed to be used with a Non-Locking Spring-Lock mechanism, which is sold as a separate item.

What is the length of this post? The Springfield 1640404 post measures 13-1/2 inches in length.

What diameter post does the 1640404 have? 1-3/4 inches (1.75 inches) in diameter, sized to work with pedestal hardware built for a post of that width.

Will this post fit my existing boat seat pedestal? Springfield lists this as a universal fit post that is interchangeable with similar pedestal setups using a 1.77 inch post, so it should fit compatible hardware sized for that post diameter.

How many posts come in the package? One Spring-Lock Fixed Height Post (part number 1640404) is included per package.

Can I use this post to replace a bent or worn pedestal post instead of buying a whole new pedestal? Yes, the 1640404 is sold as a standalone replacement post, letting you swap out just the post section rather than replacing the full pedestal assembly.

What color or finish does the 1640404 post come in? It is finished in stainless steel as shown, giving it a bright, corrosion-resistant surface.

Is this a locking or non-locking post? The post itself is a fixed height design; locking or spring-up functionality comes from the separate Non-Locking Spring-Lock unit it is meant to be paired with.

How much does the Springfield 1640404 post weigh? It weighs 1.5 pounds.