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 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.