ISO 3601-1 O-Rings
OringOne's solution for International Sealing Standards
In the industrial sealing industry, selecting the right O-Ring is essential to ensure reliability, safety, and consistent performance over time. In addition to the material and operating conditions, compliance with dimensional standards plays a crucial role in the design and maintenance of industrial systems.
At OringOne, we offer a complete range of ISO 3601-1 O-Rings, the international reference standard for the dimensions and tolerances of metric O-Rings. Thanks to our extensive expertise and a comprehensive portfolio of both standard and custom sealing solutions, we support companies worldwide in selecting the most suitable sealing solution, regardless of their target market.
What is the ISO 3601-1 Standard?
ISO 3601-1 is the international standard that defines the nominal dimensions, dimensional tolerances, and identification system for metric O Rings. This standard ensures component interchangeability and allows designers, manufacturers, and maintenance professionals to use O-Rings produced according to globally recognized specifications.
Choosing ISO 3601-1 compliant O-Rings means relying on dimensionally accurate components that guarantee perfect compatibility with grooves and housings designed according to international standards.
ISO 3601-1 vs. AS568: What's the Difference?
When operating in international markets, it is important to understand the two primary O-Ring standards.
ISO 3601-1 is the reference standard for metric O-Rings and is widely used throughout Europe, Asia, and most international markets.
The AS568 standard, on the other hand, defines inch-size O-Rings and is the primary reference in the United States and in many systems designed according to American specifications.
Many U.S. users exclusively search for AS568 O-Rings and may not be familiar with ISO 3601-1. Likewise, many European companies design and source components exclusively according to the ISO standard. Thanks to its international expertise, OringOne helps customers identify the correct equivalence between ISO 3601-1 and AS568, simplifying component selection and ensuring full compatibility for every application.
Why choose OringOne O-Rings?
At OringOne, quality is the foundation of every project.
We provide a wide range of standard and custom O-Rings, carefully selected to ensure:
- dimensional accuracy according to international standards;
- consistent quality across every production batch;
- high reliability in both static and dynamic applications;
- outstanding performance even under demanding operating conditions;
- reduced maintenance costs and minimized equipment downtime.
Our technical team supports every customer in selecting the most suitable O-Ring, providing expert guidance from the design stage through production.
High-Performance Materials for every Industry
Every application requires specific material properties. That's why OringOne manufactures O-Rings using a broad selection of high-performance elastomers, including:
- NBR;
- FKM;
- EPDM;
- Silicone;
- HNBR;
- FFKM.
Selecting the right material optimizes chemical resistance, operating temperature range, sealing performance, service life, and the overall reliability of the system.
EZTRA®: OringOne's Premium FFKM Range
For the most demanding applications, OringOne has developed EZTRA®, its premium range of FFKM O-Rings and seals engineered to deliver exceptional performance in the harshest environments.
EZTRA® FFKM O-Rings provide:
- outstanding chemical resistance;
- exceptional stability at high temperatures;
- excellent low-temperature performance;
- maximum durability in aggressive fluids and extreme operating conditions.
The range includes dedicated formulations for specific industrial requirements:
- EZTRA® HT for high-temperature applications;
- EZTRA® CH for highly chemical environments;
- EZTRA® LT for low-temperature applications;
- EZTRA® FB+M for Food, Beverage & Medical applications.
With an inventory of more than 100,000 O-Rings available in approximately 1,000 sizes, OringOne can respond quickly even to the most complex requirements.
Applications of OringOne O-Rings
Our ISO 3601-1 O-Rings are used across a wide range of industries, including:
- Hydraulic systems;
- Pneumatic systems;
- Industrial automation;
- Automotive;
- Oil & Gas;
- Chemical processing;
- Pharmaceutical;
- Food & Beverage;
- Packaging and automated machinery;
- Energy;
- Water treatment.
Across every industry, the objective remains the same: to deliver reliable sealing performance, reduce downtime, and extend equipment service life.
Why Choose OringOne?
Choosing OringOne means partnering with a company that has extensive expertise in industrial seals and sealing solutions.
Our strengths include:
- extensive availability of ISO 3601-1 and AS568 O-Rings;
- expert technical support for selecting the ideal sealing solution;
- certified, high-performance materials;
- the complete EZTRA® FFKM product range;
- fast and reliable supply;
- dedicated technical assistance.
OringOne: Your International Partner for O-Rings
Whether you are designing a system according to ISO 3601-1 or working with components manufactured to the AS568 standard, OringOne is the ideal partner for finding the most effective sealing solution.
With a comprehensive portfolio of metric O-Rings, inch-size O-Rings, high performance elastomer compounds, and the premium EZTRA® FFKM range, we support customers worldwide with reliable products, expert engineering support, and a service focused on the highest standards of quality.
Contact the OringOne team today to identify the ideal O-Ring for your application and discover how we can help improve the efficiency, safety, and service life of your sealing systems.
