Prime Line Products Sp 9673 Extension Spring 3/8 in Od 3-pack

Product Description

The PRIME LINE PRODUCTS SP 9673 is a double loop closed extension spring designed for general hardware and household repair applications. Constructed from durable spring steel with a nickel-plated finish, this spring resists corrosion and provides reliable tensile return force in light-duty service. The 3/8-inch outer diameter and 2.05-inch deflection length make it well suited for applications where a compact, consistent spring rate is needed. Each package contains 3 springs, supplying spares for high-turnover repair stock. This part is typically installed by maintenance technicians, handymen, and knowledgeable DIYers working on mechanical assemblies that require extension spring action.

Extension springs of this type appear in a wide range of residential and light commercial settings, including door hardware, screen doors, cabinet mechanisms, small appliance linkages, and general mechanical assemblies. The double loop closed end design allows straightforward hook attachment to anchor points without additional hardware. The nickel-plated finish provides a measure of surface protection in low-moisture indoor environments. The 3-unit pack is suitable for single repairs with backup units on hand or for batch servicing of multiple identical assemblies.

Key Features

• Double loop closed end design for direct hook-to-anchor attachment
• Spring steel construction for consistent return force and fatigue resistance
• Nickel-plated finish for corrosion resistance in indoor applications
• 3/8-inch outer diameter fits compact spring seat locations
• 2.05-inch deflection length supports a range of light-duty tension applications
• Sold in a 3-pack for backup inventory or batch repairs

Compatibility

Designed as a general-purpose replacement extension spring for residential and light commercial hardware assemblies requiring a 3/8-inch OD double loop closed end spring.

Installation Notes

Extension springs store energy under tension and should be installed and removed with appropriate hand protection to prevent injury if a loop slips. Relieve all load from the existing spring before removal. Use needle-nose pliers or a spring hook tool to seat the loops onto anchor points without overstretching the spring body. Verify that the replacement spring deflection length and end-loop orientation match the original assembly before applying load.