20PCS VMQ Silicone O-Ring Gaskets CS1.9mm OD 21–30mm
20PCS VMQ Silicone O-Ring Gaskets CS1.9mm OD 21–30mm
Details
20-Piece Silicone VMQ O-Ring Gasket Set — CS 1.9mm, OD 21–30mm
Keep your seals tight and your systems running with this 20-piece set of premium VMQ silicone rubber O-rings. Available in outer diameters from 21mm to 30mm with a cross-section of 1.9mm, these standard ring gaskets deliver dependable sealing performance across a wide range of applications — from plumbing and hydraulics to automotive and industrial machinery.
Why Choose These Silicone O-Rings?
- Heat-Resistant VMQ Silicone: VMQ (Vinyl Methyl Silicone) material withstands high temperatures, making it ideal for demanding environments where standard rubber falls short.
- Excellent Flexibility & Compression Set: Maintains a reliable seal under continuous compression without cracking or deforming over time.
- Chemical Resistance: Resistant to water, oils, and many common fluids — suitable for both wet and dry sealing applications.
- Standard Sizing: CS 1.9mm cross-section with OD options of 21, 22, 23, 24, 25, 26, 27, 28, 29, and 30mm — fits standard metric grooves and housings.
- Value Pack: 20 pieces per lot — stock up for maintenance, repairs, or prototyping needs.
Product Specifications
| Material | VMQ Silicone Rubber |
| Cross-Section (CS) | 1.9mm |
| Outer Diameter (OD) | 21 / 22 / 23 / 24 / 25 / 26 / 27 / 28 / 29 / 30mm |
| Shape | Ring Gasket |
| Standard | Standard |
| Quantity | 20 PCS per lot |
| Origin | Made in Mainland China |
Common Applications
- Plumbing pipe fittings & valves
- Automotive fuel and cooling systems
- Hydraulic and pneumatic equipment
- Industrial machinery and equipment seals
- DIY repair and replacement projects
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Frequently Asked Questions
Q: What temperature range can these VMQ silicone O-rings handle?
A: VMQ silicone rubber is designed for excellent heat resistance, typically performing reliably across a broad temperature range. This makes these silicone O-ring gaskets well-suited for high-temperature environments such as automotive cooling systems, industrial machinery, and heated fluid lines.
Q: What sizes are included in the 20-piece lot?
A: The lot comes in outer diameter (OD) sizes of 21, 22, 23, 24, 25, 26, 27, 28, 29, and 30mm, all with a 1.9mm cross-section (CS). Each listing option corresponds to a specific OD — please select the size you need before ordering.
Q: Are these O-rings suitable for water and fluid sealing applications?
A: Yes. VMQ silicone O-rings offer good resistance to water and many common fluids, making them a popular choice for plumbing fittings, valves, and hydraulic or pneumatic system seals.
Q: How many pieces are included per lot?
A: Each lot contains 20 pieces of the selected silicone rubber O-ring gasket size, giving you a convenient supply for repairs, replacements, or project builds.
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.