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ISO 3601 Metric O-Rings & Sealing Solutions
Precision-Engineered Metric Seals for Global Industrial Standards
Oringworld provides high-performance ISO 3601 O-rings, the international benchmark for fluid power systems. Our seals ensure leak-free performance in hydraulic, pneumatic, and general industrial applications, manufactured with rigorous quality control and material excellence.
- Full Compliance with ISO 3601-1 & ISO 3601-3
- Available in Class A (High Precision) & Class B (General Purpose)
- Wide Material Range: NBR, FKM, EPDM, HNBR, and Silicone
- Global Shipping & Technical Engineering Support
ISO 3601 Sealing Solutions for Demanding Environments
Our ISO 3601 O-rings are designed to meet the exacting requirements of modern engineering. Whether you need standard Class B tolerances for general machinery or Class A precision for critical aerospace and automotive systems, we deliver reliability.
Modular Sizing
Comprehensive range of IDs and Cross Sections as per ISO 3601-1, ensuring compatibility with international housing dimensions.
Surface Integrity
Quality acceptance criteria strictly following ISO 3601-3 Grade N and Grade S for minimal surface imperfections.
Material Versatility
Specialized compounds for extreme temperatures, chemical resistance, and high-pressure environments including FKM and HNBR.
Custom Engineering
Non-standard sizes and custom compounds available upon request to solve unique engineering challenges.
Technical Specifications
| Feature | Specification / Standard |
|---|---|
| Standard | ISO 3601-1 (Dimensions), ISO 3601-3 (Quality) |
| Size Range (ID) | 0.74 mm to 658.88 mm |
| Cross Sections (CS) | 1.02 mm, 1.78 mm, 2.62 mm, 3.53 mm, 5.33 mm, 6.99 mm |
| Tolerances | Class A (Precision) / Class B (General) |
| Materials | NBR (70/90), FKM (Viton), EPDM, Silicone, HNBR, PTFE |
| Hardness | 40 Shore A to 90 Shore A |
| Temperature Range | -60°C to +327°C (Material Dependent) |
Answers to Common Queries about ISO 3601 O-Rings
What is the difference between ISO 3601 Class A and Class B?
Class A O-rings have tighter tolerances (equivalent to AS568) and are used for critical applications where precision is paramount. Class B is the standard for general industrial use, offering a balance of performance and cost-effectiveness.
Does ISO 3601 cover surface quality?
Yes, ISO 3601-3 defines the quality acceptance criteria, including allowable surface imperfections like offsets, flash, and flow marks. We offer Grade N for general applications and Grade S for more stringent requirements.
Can you provide ISO 3601 O-rings in FKM (Viton)?
Absolutely. We offer a full range of materials including FKM for high-temperature and chemical resistance, ensuring your seals withstand harsh industrial environments.