Vlier NNS50 Threaded Spring Plunger 8-32 Steel Body

Product Description

The VLIER NNS50 is a standard threaded spring plunger designed for indexing, positioning, and light-duty detent applications in mechanical assemblies. The body is steel with a Delrin nose, providing a combination of structural rigidity and low-friction plunger contact. It uses an 8-32 thread with a 5/8-inch thread length and delivers an initial end force of 2.7 pounds and a final end force of 7.3 pounds. The plunger diameter ranges from 0.068 to 0.070 inches with a 3/32-inch projection. No locking element is included. Machinists, tool-and-die technicians, and mechanical assemblers install this type of plunger in jigs, fixtures, and production tooling.

The NNS50 is suited for use in precision fixtures, machine tool components, and mechanical assemblies where repeatable positioning or light detent action is required. The standard plunger length configuration makes it appropriate for applications with limited thread engagement depth. It is installed in tapped holes and used wherever a low-profile spring-loaded contact point is needed in a compact form factor.

Key Features

• 8-32 thread size with 5/8-inch thread length for standard tapped-hole installation
• Steel body construction for durability in production and tooling environments
• Delrin nose material provides low-friction, non-marring plunger contact
• Initial end force of 2.7 pounds and final end force of 7.3 pounds for light detent duty
• Plunger projection of 3/32 inches suits compact assembly clearances
• No locking element - free-turning for easy installation and adjustment

Compatibility

Designed as a standard OEM-style threaded spring plunger for use in tapped 8-32 holes in jigs, fixtures, and mechanical assemblies requiring a steel-body spring plunger with a Delrin nose.

Installation Notes

Install into a properly tapped 8-32 hole using appropriate hand tools. Ensure the mating hole is clean and free of chips or debris before threading in the plunger. Do not overtighten, as the steel body can be damaged by excessive torque in softer parent materials. Verify plunger projection and spring force are appropriate for the intended detent or positioning load before finalizing assembly.