Metric O-Ring Kits & Assortment Sets

International Seal supplies metric O-ring kits and metric O-ring assortment sets for industrial maintenance, engineering, machinery servicing and equipment repair. Our range includes metric O-ring selection boxes containing assorted inside diameters and cross-sectional sizes, available in NBR, EPDM, FKM and other suitable elastomer materials. Metric O-ring kits provide convenient access to commonly required sealing dimensions, helping maintenance engineers, distributors and equipment manufacturers organise replacement O-rings within a single assortment.

As a UK supplier of engineered sealing products, International Seal supports standard and custom metric O-ring kit requirements through our established international supply network. Whether you require a general-purpose assortment or a customer-specific selection of metric sizes, our team can review your specification and provide a competitive quotation.

Metric O-Ring Kit Specifications

Metric O-Rings Kit contain assortments of sealing rings | Millimetres

Metric O-ring assortment kits contain selections of elastomer sealing rings measured in millimetres. Kits can be configured around commonly used dimensions, specific cross-sectional ranges or customer-defined requirements.

The number of O-rings, size range and material specification depend on the selected kit configuration. Contents should be confirmed before ordering.

Metric O-Ring Kits Available

International Seal supplies metric O-ring assortment kits designed to support industrial maintenance, general engineering and replacement sealing requirements. Kits may contain a broad selection of standard dimensions or be configured around specific equipment and operating requirements.

Standard Metric O-Ring Assortment Kits

Standard metric O-ring kits provide selections of commonly used inside diameters and cross-sectional sizes for general engineering and machinery maintenance. Assortments are typically arranged in compartmentalised cases to allow identification and selection of replacement sealing rings.

Metric NBR O-Ring Kits

NBR metric O-ring kits contain nitrile rubber sealing rings suitable for applications involving compatible mineral oils, lubricants, fuels and industrial hydraulic fluids. These assortments are commonly used for general machinery servicing and industrial maintenance.

Metric EPDM O-Ring Kits

EPDM metric O-ring kits provide sealing assortments for applications requiring resistance to water, ozone, weathering and environmental ageing. Suitable compound grades may also be used in hot-water and steam applications where operating conditions permit.

Metric FKM O-Ring Kits

FKM metric O-ring kits contain fluoroelastomer sealing rings designed for demanding industrial applications involving elevated temperatures, oils, fuels and many chemicals. Material selection must be matched to the intended operating conditions.

Custom Metric O-Ring Kits

Custom metric O-ring kits can be assembled using customer-specified dimensions, elastomer materials and quantities. These assortments are particularly suitable for OEMs, maintenance departments and distributors requiring defined sealing selections for equipment servicing or repeat supply.

Metric O-Ring Sizes and Dimensions

Metric O-rings are specified using their nominal inside diameter (ID) and cross-sectional diameter (CS), both expressed in millimetres. For example, a metric O-ring measuring 20 mm inside diameter with a 3 mm cross-section would be specified as 20 × 3 mm. Metric O-ring assortments may contain a variety of standard inside diameters and cross-sections, allowing engineers to select replacement seals for different equipment requirements.

Common metric cross-sectional sizes include:

These are examples of metric dimensions rather than a confirmed contents list for every kit. Other dimensions may be available depending on the assortment. For detailed dimensional references and recognised standards, visit our O-Ring Size Charts.

Metric O-Ring Kit Applications

Metric O-ring assortments are used across a wide range of engineering and industrial applications where equipment requires replacement elastomer sealing components.

Industrial Maintenance

Metric O-ring kits provide maintenance engineers with convenient access to commonly required sealing dimensions for equipment servicing, planned maintenance and general repairs.

Hydraulic and Pneumatic Equipment

Suitable metric O-rings are used in hydraulic and pneumatic assemblies where the correct material, dimensions and sealing arrangement are specified. Kits can support maintenance of compatible fluid-power equipment.

Machinery and Manufacturing

Metric assortments are used in industrial machinery, manufacturing equipment and mechanical assemblies requiring replacement O-rings in standard metric sizes.

Pumps and Valves

Metric O-ring kits can support maintenance and replacement requirements for suitable pump and valve components, including static sealing locations and other application-specific arrangements.

OEM and Equipment Servicing

Custom metric assortments can be configured for equipment manufacturers requiring defined selections of replacement O-rings for servicing, maintenance packages and aftermarket support.

Why Choose International Seal?

International Seal supplies industrial sealing products to distributors, OEMs and engineering customers throughout the UK and Europe. Through our international supplier network, we support both standard metric O-ring assortments and customer-specific kit requirements.

Standard and Custom Kits

We can review general-purpose metric assortments alongside bespoke kits containing selected dimensions, compounds and quantities.

Multiple Elastomer Materials

Metric O-ring selections can be specified in NBR, EPDM, FKM and other suitable materials depending on the intended application.

Competitive Supply

Our established international sourcing relationships enable us to provide competitive quotations for standard and specialist O-ring kits.

Distributor and OEM Support

We support businesses requiring repeat assortment kits, equipment servicing packages and customer-specific sealing selections.

Metric O-Ring Kits FAQs

What is a metric O-ring kit?

A metric O-ring kit is an assortment containing O-rings specified by inside diameter and cross-sectional diameter in millimetres. Kits typically contain multiple dimensions organised within a compartmentalised storage case.

What sizes are included in metric O-ring kits?

Kit contents vary depending on the assortment. Standard selections may contain commonly used metric inside diameters and cross-sections, while custom kits can be configured around specified dimensions and quantities.

What materials are available for metric O-ring kits?

Metric O-ring kits can be supplied in materials including NBR, EPDM and FKM, subject to the required assortment and availability. Specialist elastomer options can also be reviewed.

What is the difference between metric and imperial O-ring kits?

Metric O-ring kits contain sizes specified in millimetres, while imperial O-ring kits generally contain dimensions associated with standards such as AS568 or BS1806. Although some dimensions are similar, replacement sizes should be verified against the equipment specification.

Are metric O-ring kits suitable for hydraulic applications?

Yes, suitable metric O-ring assortments can be used for hydraulic equipment maintenance. The correct material, size, hardness and operating conditions must be considered when selecting replacement seals.

Can you supply custom metric O-ring kits?

Yes. International Seal can review bespoke metric O-ring assortments containing specified dimensions, elastomer materials and quantities for industrial customers, distributors and OEMs.

Need Metric O-Ring Kits?

International Seal supplies metric O-ring kits and assortment sets for industrial engineering, machinery maintenance and equipment servicing throughout the UK and Europe. Whether you require standard metric O-ring selection boxes, material-specific assortments or custom kits containing selected dimensions and quantities, our team can review your requirements and provide a competitive quotation.

Send us your required O-ring material, size range, preferred kit configuration and quantity. Existing assortment references and customer-defined contents lists can also be reviewed.