Vlier NM52P Threaded Spring Plunger 10-32 Steel Locking

Product Description

The VLIER NM52P is a stubby threaded spring plunger designed for positioning, indexing, and light-duty locking applications in mechanical assemblies. It features a 10-32 thread size with a body and thread length of 0.468 inches and a maximum plunger diameter of 0.093 inches. The plunger delivers 1.75 pounds of initial end force and 6.25 pounds of final end force, making it suited for applications that require a firm, repeatable detent action. The steel body provides durability, while the Delrin nose reduces friction and wear against mating surfaces. A locking element is included to secure the plunger in position after installation.

This spring plunger is used in precision mechanical assemblies where controlled positioning or indexing is required. The stubby body profile fits confined spaces where standard-length plungers cannot be accommodated. Typical applications include jigs, fixtures, tooling plates, machine components, and light-duty detent mechanisms in industrial equipment. It is installed by machinists, tool and die makers, and mechanical assembly technicians working in manufacturing and fabrication environments.

Key Features

• 10-32 thread size with 0.468 inch thread and body length
• Stubby plunger profile for use in space-constrained assemblies
• 1.75 lb initial end force and 6.25 lb final end force for reliable detent action
• Steel body construction for strength and durability
• Delrin nose material reduces wear on mating surfaces
• Integrated locking element secures plunger position after installation

Compatibility

Designed as an OEM-style replacement or direct-fit component for threaded spring plunger applications using a 10-32 thread form in mechanical assemblies requiring a stubby-length plunger.

Installation Notes

Install using a standard hex key or appropriate driver into a pre-tapped 10-32 threaded hole. Disengage or de-energize any powered equipment before servicing assemblies containing this plunger. The locking element should be engaged after the plunger is threaded to the desired depth to prevent backing out under vibration. Avoid over-torquing, which can damage the thread form or compress the internal spring beyond its design range.