Vlier SSMD53P Threaded Spring Plunger 10-32 Stainless Steel

Product Description

The VLIER SSMD53P is a stubby threaded spring plunger designed to provide repeatable, spring-loaded positioning and holding force in mechanical assemblies. Featuring a 10-32 thread size with a 0.468-inch thread length, the plunger delivers an initial end force of 0.75 pounds and a final end force of 2.5 pounds. The stainless steel body resists corrosion in demanding environments, while the Delrin nose reduces friction and wear at the contact point. A locking element is included to secure the plunger in the threaded bore after installation, preventing loosening under vibration. This part is installed by machinists, maintenance technicians, and assembly professionals working in precision mechanical and industrial applications.

The SSMD53P is suited for use in fixtures, tooling, jigs, and mechanical housings where a compact, stubby-profile spring plunger is required. The 0.065-inch plunger projection and 0.093-inch maximum plunger diameter make it appropriate for applications with tight clearances or shallow engagement depths. Typical install scenarios include indexing mechanisms, detent positioning, and panel retention in industrial and light mechanical assemblies.

Key Features

• Stubby plunger profile with 0.468-inch body length for installations with limited depth
• 10-32 threaded body for direct installation into a tapped bore
• Stainless steel body provides corrosion resistance in wet or chemical-exposure environments
• Delrin nose material reduces friction and extends service life at the contact interface
• Locking element secures the plunger in place against vibration and loosening
• 0.75-pound initial end force and 2.5-pound final end force for light-duty detent and positioning use

Compatibility

Designed as an OEM-style replacement or direct-fit spring plunger for mechanical assemblies using a 10-32 threaded bore with stubby-depth clearance requirements.

Installation Notes

Install using a screwdriver or hex key appropriate for the plunger head style into a clean, properly tapped 10-32 threaded bore. Engage the locking element to torque specifications recommended by the assembly designer to prevent backing out under operational vibration. De-energize or depressurize any assembly before servicing plungers in live mechanical systems. Avoid over-driving the plunger, which can damage the Delrin nose or deform the locking element.