Brown FKM O-Rings CS3mm – Heat & Chemical Resistant Seals
Brown FKM O-Rings CS3mm – Heat & Chemical Resistant Seals
Details
Brown FKM Fluorine Rubber O-Rings – CS3mm Seals & Gasket Washers
Keep your equipment sealed and leak-free with these premium CS3mm Brown FKM Fluorine Rubber O-Rings. Engineered from high-grade Fluorocarbon (FKM) rubber, these standard ring gaskets deliver outstanding resistance to elevated temperatures, chemicals, oils, and everyday mechanical wear — making them an indispensable sealing solution for industrial, automotive, plumbing, and DIY applications.
Key Features
- Material: High-quality FKM (Fluorocarbon/Viton-type) rubber for superior durability
- Cross-Section (CS): 3mm for a reliable, consistent seal
- Temperature Resistant: Maintains integrity across a wide range of operating temperatures
- Wear Resistant: Built to withstand mechanical stress, friction, and repeated use
- Chemical Resistant: Excellent resistance to fuels, oils, hydraulic fluids, and many industrial solvents
- Shape: Standard Ring Gasket — fits a broad range of standard fittings and connectors
- Color: Brown — easily identifiable FKM compound
- Standard Sizing: Manufactured to standard dimensions for universal compatibility
What Is FKM Rubber?
FKM (Fluorocarbon rubber) is one of the most chemically and thermally resilient elastomer materials available. Compared to standard rubber or silicone O-rings, FKM compounds maintain their sealing properties under harsh conditions — from aggressive chemical exposure to prolonged high-temperature environments. These brown O-rings are ideal wherever reliability and longevity are non-negotiable.
Common Applications
- Automotive fuel and cooling systems
- Hydraulic and pneumatic equipment
- Industrial pumps, valves, and fittings
- Plumbing and fluid handling systems
- DIY mechanical repair and maintenance
Specifications
| Attribute | Detail |
|---|---|
| Brand | Ouling |
| Material | FKM Fluorine Rubber |
| Cross-Section (CS) | 3mm |
| Color | Brown |
| Shape | Ring Gasket |
| Standard | Standard Sizing |
| Country of Origin | Made in China |
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Frequently Asked Questions
Q: What does FKM mean and why choose FKM O-rings over standard rubber?
A: FKM stands for Fluorocarbon rubber, a synthetic elastomer known for exceptional resistance to heat, chemicals, oils, and wear. Compared to standard nitrile (NBR) or EPDM rubber O-rings, FKM O-rings maintain their shape and sealing performance in demanding environments involving fuels, hydraulic fluids, and elevated temperatures — making them the preferred choice for automotive, industrial, and heavy-duty applications.
Q: What is the cross-section (CS) measurement and why does it matter?
A: The cross-section (CS) of an O-ring refers to the diameter of the ring's circular cross-section — in this case, 3mm. This measurement is critical for selecting the correct O-ring to achieve a proper compression seal within a groove or fitting. Always match both the inner diameter (ID) and cross-section to your specific application requirements.
Q: Are these O-rings suitable for high-temperature applications?
A: Yes. FKM fluorine rubber is specifically engineered for temperature resistance, making these CS3mm brown O-rings well-suited for applications that involve elevated heat levels, such as automotive engines, industrial machinery, and hydraulic systems where standard rubber seals may degrade over time.
Q: Can these O-rings be used with fuels and chemicals?
A: Absolutely. One of the defining characteristics of FKM rubber is its excellent chemical compatibility with a wide range of fuels (gasoline, diesel), oils, hydraulic fluids, and many industrial solvents. However, always verify compatibility with your specific fluid and operating conditions before installation.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.
Materials + Care
We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.
Shipping + Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.