Vlier DSSB48 Threaded Ball Plunger 6-40 Stainless Steel

Product Description

The VLIER DSSB48 is a threaded ball plunger designed for controlled end-force applications in precision assemblies and mechanical positioning systems. The body is machined from stainless steel with a zinc-plated finish, measuring 0.312 inches in body length. The nylon ball measures 0.078 inches in diameter with a maximum ball reach of 0.023 inches. Initial end force is 0.5 pounds, with a final end force of 1 pound, making this plunger well suited for light-duty detent, indexing, and positioning tasks where repeatable force is required. Identified by a purple color code for quick field identification.

The DSSB48 is used in light-duty mechanical assemblies where consistent, low-force ball engagement is needed. Typical applications include machine tool fixtures, instrumentation panels, electronic enclosures, and precision jigs requiring a controlled detent action. The 6-40 threaded body allows installation into tapped holes in metal or plastic components across a range of industrial and OEM manufacturing environments. The nylon ball minimizes surface marking on mating components, making this plunger appropriate where contact damage to sensitive surfaces must be avoided.

Key Features

• 6-40 threaded body for direct installation into standard tapped holes
• Stainless steel body construction with zinc-plated finish for corrosion resistance
• Nylon ball contact minimizes surface damage on mating components
• 0.5 pound initial end force and 1 pound final end force for controlled, repeatable detent action
• 0.078 inch ball diameter with 0.023 inch maximum ball reach
• Purple color code for fast visual identification in multi-plunger assemblies

Compatibility

Designed as a direct-fit threaded ball plunger for applications requiring a 6-40 thread size with controlled end-force characteristics in light-duty detent and indexing assemblies.

Installation Notes

Installation is typically performed by maintenance technicians or machine builders using standard hand tools. Thread the plunger into a pre-tapped 6-40 hole and torque only to the degree required to seat the body without deforming the stainless steel housing or the nylon ball element. Verify ball engagement and travel are unobstructed before returning the assembly to service. Do not exceed the rated end-force values in the application, as over-loading the nylon ball may cause deformation and loss of consistent detent force.