450mm ID to 600mm ID / 18" to 24" ID
Spliced & Vulcanized 75 Durometer Black Viton® (FKM) O-Ring – Custom Sizes Made Easy
Solve your unique sealing challenges with The O-Ring Store LLC’s Spliced & Vulcanized Viton® (FKM) O-Rings. When standard molded O-Rings don’t fit the application or lead times are too long, our custom vulcanized O-Rings deliver fast, flexible, and reliable sealing solutions. Expertly crafted from extruded O-Ring cord and vulcanized for a near seamless finish, these O-Rings are available in custom sizes and dimensions to meet the most demanding requirements.
Olypsys® Measurement Verification & Quality Assurance
Every vulcanized O-Ring we produce includes a certified Olypsys® Measurement Verification Report, verifying exact ID, OD, and cross-section accuracy for traceable quality assurance. This process ensures precision, trust, and reliability in every seal we manufacture. Customers can rely on our Olypsys-certified measurement data as part of our ISO9001:2015 quality system, reinforcing confidence in every order.
Current Lead Times
Dependent on cord stock availability
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Up to 24 O-Rings: Current Lead Time ~2–5 Days ARO
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25–100 O-Rings: Current Lead Time ~5–10 Days ARO
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100+ O-Rings: Current Lead Time ~10–15 Days ARO
Key Features & Benefits
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Custom Sizes and Flexible Solutions:
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Made to your exact inner diameter (ID) and cross-section specifications.
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Available in both inch and metric sizes to ensure the perfect fit for your application.
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Ideal for oversized, non-standard, or hard-to-find O-Ring sizes.
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High-Quality Vulcanization Process:
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Crafted from Viton® (FKM) 75 Duro O-Ring cord, vulcanized for superior sealing performance.
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Inspected using the Olypsys® Large Format Grid for accuracy on sizes under 48", ensuring precision and reliability.
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Temperature and Chemical Resistance:
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Temperature Range: -20°F to +400°F (-29°C to +204°C) for versatile performance in extreme environments.
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Excellent resistance to superior resistance to high temperatures, harsh chemicals, and aggressive fuels..
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Good tensile strength, abrasion resistance, and dimensional stability.
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Application Flexibility:
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Suitable for dynamic and static sealing in hydraulic and pneumatic systems.
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Works effectively in pumps, valves, motors, cylinders, and other industrial equipment.
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Great for general-purpose and chemical resistant sealing, making it one of the most versatile elastomers available.
Applications
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Hydraulics and Pneumatics: Motors, cylinders, and pumps.
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Petroleum Industry: Seals for oils, fuels, and lubricants.
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Industrial and Commercial Equipment: Gasketing, static and dynamic sealing solutions.
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Water Systems: Cold water sealing and applications involving silicone greases or oils.
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Maintenance and Repair Operations (MRO): Ideal for custom solutions in emergencies or quick replacements.
Limitations
While Buna-N/Nitrile offers outstanding performance in most conditions, it is not recommended for:
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Strong acids or ozone exposure.
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Ketones (e.g., acetone, MEK) and halogenated hydrocarbons (e.g., carbon tetrachloride).
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Phosphate ester hydraulic fluids (Skydrol) and automotive brake fluids.
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Nitro hydrocarbons and aromatic hydrocarbons.
Technical Specifications
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Property
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Value
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Material
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Viton® Fluorocarbon (FKM)
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Durometer (Hardness)
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75 Shore A
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Temperature Range
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-20°F to +400°F (-29°C to +204°C)
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Tensile Strength
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Excellent for high-performance sealing
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Chemical Resistance
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Petroleum oils, fuels, hydraulic fluids, water
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Compression Set
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Low, ensuring long-lasting performance
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Abrasion Resistance
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High, ideal for dynamic sealing
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Weather & Aging Resistance
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Withstands ozone, UV, and extreme weather conditions.
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Why Choose The O-Ring Store LLC?
We’re not just a supplier—we’re your partner in sealing solutions, providing unmatched value-added services and quality:
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ISO9001:2015 Certified: Ensures consistent quality and compliance with industry standards.
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Expert Technical Support: Assistance with sizing, material selection, and application recommendations.
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Custom Sizing Made Simple: No need to wait for molded sizes—our vulcanized O-Rings provide fast, accurate results.
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Precision Quality Control: All O-Rings under 48" are inspected using Olypsys® Large Format Grid Measuring Systems for guaranteed accuracy.
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Fast Turnaround Times: Get the O-Rings you need—quickly and efficiently.
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Sustainability Focused: Custom sizing reduces waste and improves efficiency.
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Advanced Tools: Use our O-Ring Cord Cut-Length Calculator for exact measurements and easy ordering.
Experience the Difference
At The O-Ring Store LLC, “We make getting O-Rings easy!” Whether you need a single vulcanized O-Ring or a bulk order, we’re ready to deliver fast, high-quality solutions tailored to your requirements. Our spliced and vulcanized Buna-N 70 O-Rings provide the reliability, durability, and flexibility needed to keep your operations running smoothly.
Order today or contact us for a quote! Let us help you tackle your sealing challenges with precision, performance, and personalized service.