Gardner Spring SS-18M Utility Compression Spring

Product Description

The GARDNER SPRING SS-18M is a utility compression spring manufactured from stainless steel with a plain finish. It measures 0.688 inches outside diameter and 1.25 inches free length, with a wire diameter of 0.0909 inches and a solid height of 0.68 inches. The spring delivers a spring rate of 84.6 pounds per inch and supports a maximum work load of 40.2 pounds. Closed ends provide stable seating on flat surfaces without additional hardware. This part is suited for use by mechanical maintenance technicians, industrial service professionals, and tradespeople working on equipment that requires a compact, corrosion-resistant compression spring.

The SS-18M is appropriate for light-duty mechanical assemblies across HVAC, plumbing, electrical, and general industrial applications. Its stainless steel construction makes it well suited for environments where moisture, mild chemicals, or temperature cycling would degrade carbon steel alternatives. The closed end design and utility classification make it a straightforward drop-in for standard spring seats in valves, latches, switches, and similar components. Package quantity is 6 units per pack.

Key Features

• Stainless steel construction resists corrosion in wet or chemically active environments
• Closed end type provides flat, stable seating without grinding or additional machining
• Spring rate of 84.6 pounds per inch for consistent, predictable load response
• Maximum work load of 40.2 pounds suits light-duty mechanical assemblies
• Compact 0.688 inch OD and 1.25 inch free length fits tight clearance applications
• Plain finish maintains dimensional tolerances with no added coating buildup

Compatibility

Designed as an OEM-style replacement or service stock utility compression spring for mechanical assemblies requiring a 0.688 inch OD, 1.25 inch free length, closed-end stainless steel spring.

Installation Notes

Installation of compression springs is typically performed by mechanical or maintenance technicians as part of valve, switch, or mechanical assembly service. De-energize and relieve all pressure or tension from the assembly before removing the existing spring. Ensure the spring seat surfaces are clean and free of debris to allow proper seating of the closed ends. Do not compress the spring beyond its solid height of 0.68 inches during installation or operation.