Vlier SSPH52 Threaded Spring Plunger 10-32 Stainless Steel

Product Description

The VLIER SSPH52 is a threaded spring plunger designed for precise, repeatable positioning and locking in mechanical assemblies. The body and nose are both stainless steel, making this plunger well-suited for corrosive or washdown environments. It features a 10-32 thread with a 3/4 inch thread length and a 1/8 inch plunger projection. Initial end force is 2.9 pounds, middle end force is 7.0 pounds, and final end force is 11.1 pounds, giving installers a known, consistent force curve across the full travel range. Machinists, toolmakers, and mechanical assembly technicians are the primary installers of this component.

The SSPH52 fits applications where a spring-loaded nose must locate, index, or retain a moving component such as a sliding panel, fixture plate, or rotating dial. The 10-32 threaded body installs directly into a tapped hole in metal or plastic substrates. The standard plunger length configuration and compact 3/4 inch body length make it appropriate for shallow-depth housings and tight assemblies where a full-length plunger is not required. No locking element is included, so the plunger can be adjusted or removed with standard hex tooling.

Key Features

• Stainless steel body and nose for corrosion resistance in harsh or washdown environments
• 10-32 thread size with 3/4 inch thread length for direct installation into tapped holes
• 1/8 inch plunger projection with a known force curve: 2.9 lb initial, 7.0 lb middle, 11.1 lb final end force
• No locking element allows for straightforward installation and removal using hex tooling
• Minimum plunger diameter of 0.091 inches and maximum of 0.092 inches for consistent nose fit
• Standard plunger length type suits shallow housings and compact mechanical assemblies

Compatibility

Designed as a standard threaded spring plunger for use in tapped 10-32 holes in metal or plastic assemblies requiring spring-loaded indexing, positioning, or retention.

Installation Notes

Installation is performed by threading the plunger body into a pre-tapped 10-32 hole using a hex key sized to the 0.063 inch hex flat. Confirm the mating bore or detent geometry matches the 0.091 to 0.092 inch nose diameter before installation. Ensure the assembly is de-energized and clear of moving parts before installing or adjusting plungers in live tooling or automated fixtures. Do not overtighten the body, as this can compress the spring beyond its rated travel and reduce end force accuracy.