Overview
The Vlier S56 stainless steel spring plunger is a precision-engineered positioning and indexing device designed for industrial applications requiring reliable, repeatable end forces. This lot contains six units with 5/16-18 UNC hex drive threads and 1-inch engagement length. Vlier S56 plungers feature stainless steel construction for maximum corrosion resistance and durability in demanding environments.
Key Features
- Stainless steel construction — Withstands high temperatures and resists rust and corrosion in harsh environments
- Standard spring plunger design — Long travel distance and large bearing surfaces for accurate alignment and load distribution
- Hex drive installation — Easy installation and removal using standard hex wrench tools
- Multiple application options — Suitable for positioning, indexing, ejecting, locking, latching, detents, contacts, lifters and insulators
- Precise end force — Delivers consistent spring tension across full range of travel
- High torque capability — Withstands high torque loads in demanding fastening applications
Technical Specifications
- Part Number: Vlier S56
- Thread Size: 5/16-18 UNC
- Thread Length: 1.0 inch
- Nose Projection: 0.1875 inch
- Material: Stainless Steel Body & Plunger Nose
- Drive Style: Hex (Standard Hex Drive)
- Quantity per Lot: 6 units
- Finish: Passivated stainless steel
- Temperature Range: High-temperature rated stainless steel alloy
- Installation Type: Threaded into tapped hole
Typical Applications
Typical uses include positioning, indexing, locating, ejecting, locking, latching, detents, contacts, lifters and insulators. Standard spring plungers offer long travel, large bearing surfaces and numerous design and material options making them ideal for machinery stops, fixture components, document feeders, and precision assembly fixtures. The stainless steel material specification makes these units particularly suited for food processing, pharmaceutical, chemical, and outdoor equipment applications where corrosion resistance is critical.
Compatibility & Replacements
Compatible With
- Any application requiring 5/16-18 UNC threaded fasteners
- Fixtures and tooling with threaded holes matching 5/16-18 specifications
- Industrial machinery requiring precision positioning devices
- Equipment designed for standard spring plunger integration
Replaces / Drop-In Replacement For
The Vlier S56 is a standard industry part number. Verify compatibility with your application’s original equipment specifications before ordering, as spring plunger models vary by thread size, projection length, and end force rating.
Works With
- Standard hex wrenches and installation tools (5/32-inch for 5/16 hex socket)
- Tapped holes with 5/16-18 UNC thread specification
- Nylon locking elements (optional for thread-locking applications)
- All industrial fastening and assembly platforms using standard hex-drive components
