You are here: / Machined Metal Seals

Machined Metal Seals
Precision Sealing for Critical Environments 

RocketBoeing selected Technetics as their NAFLEX and K-Port machined seal supplier for the NASA Space Launch System.
Rocket
Rocket
Watch The Video

When downtime isn’t an option, Technetics Machined Metal Seals deliver certainty at any scale. 
Engineered for rapid turnaround, seamless high-volume production, and uncompromising performance, our seals stand up to extreme temperatures, pressures, and corrosive or radioactive atmospheres without the long lead times of formed alternatives. 
Certified to fit AS5202 K-Port flanges for leak-tight aerospace interfaces. 

Speak with a Specialist

Solving Real-World Sealing Challenges 

Your challenge: 

  • Extreme temperatures or pressures degrading elastomeric seals 
  • High maintenance costs and unplanned shutdowns 
  • Meeting stringent aerospace specs like AS5202 K-Port 
  • Scaling from prototypes to high-volume production runs 
  • A need for total quality and traceability meeting or exceeding aerospace standards 
  • A need for redundant supply from a global supply chain 

Why Machined Metal Seals Matter 

Machined Metal Seals leverage precision CNC machining  

  • Fast prototypes 
  • Scalable manufacturing from single prototypes to high-volume production batches 
  • Unlimited design flexibility for unique geometries, including AS5202 K-Port profiles 
  • Choice of any machinable alloy stainless, nickel, titanium, or exotic 
  • Consistent, high-integrity seals for critical systems 

Why Machined Metal Seals Work Where Others Fail 

  • Extreme Condition Reliability 
    From -320 ̊F to 2200   ̊F (−196 °C to 1200 °C) and full vacuum to 241 bar (3 495 PSI), seals retain integrity. 
  • Aerospace Spec Compliance 
    Designed to AS5202 K-Port dimensions for seamless integration into mission-critical feedlines. 
  • In-House Engineering Expertise
    Engineering resources to support both design and manufacturing of custom solutions 
  • High-Volume Production Efficiency 
    Optimized CNC workflows deliver consistent quality and competitive unit costs at scale. 
  • Adaptive Material Selection 
    Match your chemistry and temperature with custom coatings or exotic alloys for unmatched compatibility. 
  • Custom Geometry 
    Complex profiles and tight tolerances achieved without additional tooling costs. 

Key Benefits That Drive Value for Your Application 

Feature Value Delivered
Scalable & Consistent Production Competitive unit pricing and consistent quality across large batch runs
AS5202 K-Port Compatibility Fits standard aerospace K-Port flanges for certified leak-tight performance
Extreme Temperature & Pressure Range Seal reliably from cryogenic lows to 2200 °F and up to 3500 PSI. Testing up to 100000 PSI
Material & Coating Flexibility Custom-engineer for corrosive, radioactive, or high-wear environments
Reduced Maintenance Frequency Cut seal replacements by slashing downtime and service costs
Unlimited Geometry Options Achieve complex seal profiles and small batch runs with consistent accuracy

Trusted Across Critical Industries 

  • Aerospace: AS5202 K-Port cryogenic fuel lines, propulsion system seals 
  • Nuclear & Energy: Reactor vessels, spent fuel casks, containment assemblies 
  • Chemical Processing: High-pressure valves, corrosive solvent applications 
  • Hydrogen & Clean Energy: Storage tanks, transport infrastructure 

Built for Confidence 

Whether you’re sealing a space-launch feedline or a nuclear containment flange, Machined Metal Seals give you: 

  • Proven performance in the critical environments 
  • Faster design iterations, from prototype through high-volume production 
  • Lower total cost of ownership through extended lifecycle and minimal downtime

SPEAK WITH A SPECIALIST

Have questions? A Technetics Group product specialist will get back to you to shortly.

Metal Seals

Resources

Pressure Relief ValvesBelleville Rupture Disc or Burst Disc from side Relief ValvesRupture Disc – SAFE-SHEAR™ Belleville Burst Disc