50PCS Silicone VMQ O-Ring Gasket Set CS1mm OD 3–13mm

50-Piece Silicone VMQ O-Ring Gasket Assortment — CS 1mm, OD 3–13mm

Keep leaks at bay with this versatile 50-piece set of VMQ silicone rubber O-rings. With a uniform cross-section (CS) of 1mm and outer diameters ranging from 3mm to 13mm in half-millimeter increments, this kit is an essential addition to any tool drawer, workshop bench, or parts cabinet. Whether you're sealing plumbing fittings, valves, pumps, or precision machinery, these standard-size ring gaskets deliver a reliable, flexible seal time after time.

Made in Mainland China.

Key Features

• Premium VMQ Silicone Material: High-quality silicone (VMQ) rubber offers excellent flexibility, chemical resistance, and durability across a wide temperature range.
• Wide Size Range: OD sizes — 3, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12, and 13mm — cover a broad variety of standard sealing applications.
• Uniform Cross-Section: Consistent CS of 1mm ensures a predictable, snug fit in standard grooves and housings.
• Standard Dimensions: Manufactured to standard tolerances for straightforward interchangeability and replacement.
• Quantity Value Pack: 50 pieces per lot — ideal for maintenance kits, repair jobs, and stock replenishment.
• Ring Gasket Shape: Classic toroidal ring design for dependable static and dynamic sealing.

Specifications

Ideal Applications

• Plumbing fittings, taps, and connectors
• Hydraulic and pneumatic valves
• Water pumps and fluid handling equipment
• Precision machinery and instrumentation
• Automotive fluid systems and fuel components
• General-purpose maintenance and repair kits

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Frequently Asked Questions

Q: What does VMQ silicone mean for O-ring performance?

A: VMQ stands for vinyl methyl silicone, a type of silicone rubber known for its excellent temperature resistance (typically –60°C to +200°C), good flexibility, and resistance to many fluids and chemicals. VMQ silicone O-rings maintain their sealing properties across a wide range of operating conditions, making them a popular choice for plumbing, hydraulic, and general-purpose applications.

Q: How many size variants are included in this 50-piece lot?

A: This lot covers outer diameters of 3, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12, and 13mm — all with a uniform cross-section of 1mm. The exact quantity per size may vary; the total pack contains 50 pieces distributed across these sizes.

Q: Are these O-rings suitable for use with water and common household fluids?

A: Yes. VMQ silicone rubber offers good compatibility with water, steam, and many common household and light industrial fluids. For aggressive chemicals or petroleum-based fluids, always verify fluid compatibility with the VMQ silicone specification before use.

Q: Can these O-rings be used as replacement gaskets in standard fittings?

A: Absolutely. These are manufactured to standard dimensions, so they are suitable as direct replacements in standard grooves and housings that accommodate a 1mm cross-section O-ring. Always verify the OD and CS measurements against your application 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.