The OSK™ DIN 3869 Fluid Connector O-Ring Kit includes 300 pieces across 15 essential metric sizes of green FKM (fluorocarbon rubber) profile seals. These profile rings are engineered for high-performance static sealing in hydraulic connectors built to DIN 3869, ISO 1179, ISO 6149, and DIN 2353 standards.
Designed for use in demanding hydraulic applications, these 80 durometer green FKM seals provide superior chemical resistance and long-term thermal stability, making them ideal for systems exposed to aggressive fluids, fuels, or elevated operating temperatures.
Why FKM 80 Green Profile Seals?
- Excellent resistance to:
- Petroleum-based oils and fuels
- Synthetic hydraulic fluids
- Diesel, ATF, and lubricants
- Aliphatic, aromatic, and chlorinated hydrocarbons
- Many acids and aggressive chemicals
- Limited resistance to:
- Hot water (up to 80°C / 176°F)
- Steam or glycol-based brake fluids
- Not recommended for:
- Polar solvents (e.g., ketones, esters)
- Steam or water over 150°C (300°F)
Kit Features & Benefits:
- Material: 80 Shore A green FKM for premium sealing in high-heat, high-chemical environments
- Design: Static profile ring prevents twisting during installation and resists deformation under pressure
- Operating Temp Range: -4°F to +392°F (short-term up to 437°F)
- Compatibility: Commonly used in carbon steel hydraulic fittings and high-pressure systems where standard nitrile fails
- Complete Coverage: Includes 15 popular DIN 3869 sizes—ideal for MRO, repair techs, or OEM toolkits
DIN 3869 Sealing Advantages:
DIN 3869 seals are designed for axial static applications in combination with threaded elements. These seals are commonly used in construction machinery, hydraulic presses, injection machines, fittings, hydraulic valves, and threaded tube connections across various industries.
- Functionality: The DIN 3869 profile sealing rings ensure the axial-static sealing of threaded tube connections, fittings, and sealing screws with stud ends in connection with ports.
- Performance: By tightening the screw connection, the elastomer profile sealing ring compacts, enhancing the sealing effect and preventing medium leakage, which maintains pressure and protects against contamination by dust and dirt.
- Design Benefits: The seal’s geometry minimizes mechanical deformation and protects against twisting during installation.
Kit Contents:
| Product Code | Inside Diameter (ID) | Outside Diameter (OD) | Height (H) | Quantity |
|---|
| PR08-F80 | 6.50mm | 9.90mm | 1.00mm | 20 |
| PR10-F80 | 8.40mm | 11.90mm | 1.00mm | 20 |
| PR12-F80 | 9.80mm | 14.10mm | 1.20mm | 20 |
| PR14-F80 | 11.60mm | 16.50mm | 1.50mm | 20 |
| PR16-F80 | 13.50mm | 18.50mm | 1.50mm | 20 |
| PR17-F80 | 14.40mm | 19.80mm | 1.50mm | 25 |
| PR18-F80 | 15.60mm | 21.00mm | 1.50mm | 25 |
| PR20-F80 | 17.50mm | 23.00mm | 1.50mm | 25 |
| PR21-F80 | 18.80mm | 24.50mm | 1.50mm | 25 |
| PR22-F80 | 19.70mm | 25.80mm | 1.50mm | 20 |
| PR27-F80 | 24.80mm | 31.30mm | 2.00mm | 20 |
| PR30-F80 | 27.80mm | 34.80mm | 2.00mm | 20 |
| PR33-F80 | 29.70mm | 35.70mm | 2.00mm | 20 |
| PR42-F80 | 38.80mm | 45.80mm | 2.00mm | 10 |
| PR48-F80 | 44.30mm | 52.00mm | 2.00mm | 10 |
Why Choose OSK™ DIN 3869 Kit?
The OSK™ DIN 3869 Fluid Connector / Profile Seal O-Ring Kit is perfect for engineers and maintenance professionals who need reliable sealing solutions. The kit’s design prevents common sealing issues, such as twisting, while offering a wide range of sizes for different requirements. Made from durable nitrile, these seals provide longevity and performance, making them ideal for various industrial applications.
Applications:
- Hydraulic and pneumatic systems
- Fluid power applications
- Static sealing in machinery and equipment
The OSK™ DIN 3869 FKM Kit is perfect for demanding hydraulic systems requiring compatibility with higher temperatures and aggressive fluids — ideal for carbon steel fittings and pressure-critical installations.
Why Buy from The O-Ring Store?
We are your trusted ISO 9001:2015-certified sealing experts, offering:
- Precision-built kits assembled in-house
- Lot-traceable packaging
- Olypsys® AI Inspection available
- Custom labeling and private branding options
- Fast U.S. shipping and volume discount pricing
- Millions of O-Rings and profile seals ready to ship
- COTS - TORS Certificate of Conformance Included