Tech Etch Contact Rings
Reliable Contact, Grounding, and EMI/RFI Shielding for Circular Interfaces
Tech Etch Contact Rings provide a durable solution for maintaining reliable electrical contact, grounding, and EMI/RFI shielding around circular interfaces. Fabricated from beryllium copper fingerstock, these rings combine excellent spring properties with strong attenuation performance for demanding electronic and RF applications.
Available for both inside (female) and outside (male) plug configurations, Tech Etch Contact Rings can be formed in a wide range of diameters to support specialized equipment designs.

Discover the Features + Benefits | Contact Rings
- Beryllium Copper Fingerstock Construction: Manufactured from beryllium copper fingerstock for an effective combination of conductivity, spring performance, durability, and long-term reliability.
- Configurable Ring Diameters: Contact Rings can be formed in a wide range of diameters based on the selected fingerstock profile and number of fingers, supporting both standard and specialized applications.
- Excellent Durability: Resilient fingerstock construction allows the individual contacts to maintain pressure against mating surfaces through repeated engagement and use.
- Maintain Reliable Electrical Contact: Spring fingers maintain continuous contact around mating surfaces, helping establish dependable electrical continuity throughout the interface.
- Improve EMI/RFI Shielding: Contact Rings can help close potential electromagnetic leakage paths around circular openings and connections, supporting overall equipment shielding performance.
- Support Effective Grounding: Conductive beryllium copper construction provides a reliable path between mating components for grounding and bonding applications.
Tech Etch specifically recommends Contact Rings for microwave cavities, tuning, shielding, and grounding applications. Their circular design can support a variety of electronic, RF, communications, and instrumentation equipment, including:
- Microwave cavities
- RF equipment
- Electronic shielding assemblies
- Grounding interfaces
- Circular connectors
More Tech Etch Solutions
Metalized Fabric Over Foam Gaskets
- High attenuation shielding using conductive nickel-plated copper nylon ripstop fabric
- Over 150 profiles and sizes available
Vents and Filters
- Cost effective standard rivet
- Installed quickly and easily
- Design of the stem head ensures positive retention
after installation
Featured Resources
Questions? Contact Us: