Imperial & AS568 O-Ring Kits
International Seal supplies imperial O-ring kits and AS568 O-ring assortment sets for industrial maintenance, engineering, machinery servicing and equipment repair. Our range includes imperial O-ring selection boxes containing assorted inside diameters and cross-sectional sizes, with options in NBR, EPDM, FKM and other suitable elastomer materials. Imperial O-ring kits provide convenient access to commonly required sealing dimensions specified under recognised standards such as AS568 and BS1806. These assortments are widely used by maintenance engineers, distributors and equipment manufacturers working with imperial-sized sealing components.
As a UK supplier of engineered sealing products, International Seal supports standard and custom imperial O-ring kit requirements through our established international supply network. Whether you require an AS568 assortment, a selection of British Standard sizes or a customer-specific kit, our team can review your requirements and provide a competitive quotation.
Imperial O-Ring Kit Specifications
Imperial O-ring assortment kits contain selections of elastomer sealing rings manufactured to recognised inch-based dimensional standards. Kits can be configured around AS568 dash-number sizes, BS1806 references or customer-specified dimensions.
- Imperial Inside Diameter and Cross-Sectional Sizes
- NBR, EPDM and FKM Material Options
- Standard and Custom Size Assortments
- Compartmentalised Storage Cases
- Multiple O-Ring Dimensions per Kit
- Suitable for Engineering and Maintenance
- Customer-Specific Kit Configurations
The number of O-rings, size range and material specification depend on the selected kit configuration. Contents should be confirmed before ordering.
Imperial O-Ring Kits Available
International Seal supplies imperial O-ring assortment kits designed to support industrial maintenance, general engineering and replacement sealing requirements. Assortments may contain commonly used imperial dimensions or be configured around specific equipment and operating requirements.
Standard Imperial O-Ring Assortment Kits
Standard imperial O-ring kits provide selections of commonly specified inch-based inside diameters and cross-sectional sizes. These assortments are suitable for machinery maintenance, workshop repairs and replacement sealing applications where imperial dimensions are required.
AS568 O-Ring Kits
AS568 O-ring kits contain standardised imperial O-ring dimensions identified using the AS568 dash-number system. Assortments can include selected sizes across the recognised cross-sectional series, supporting engineers working with equipment specified to AS568 dimensions.
BS1806 O-Ring Kits
BS1806 O-ring kits provide sealing assortments based on British imperial sizing references. These dimensions remain relevant to maintenance and replacement requirements for equipment originally designed around British Standard O-ring sizes.
Imperial NBR O-Ring Kits
NBR imperial 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 specified for machinery servicing, hydraulic equipment and general engineering.
Imperial EPDM O-Ring Kits
EPDM imperial O-ring kits provide sealing selections 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.
Imperial FKM O-Ring Kits
FKM imperial O-ring kits contain fluoroelastomer sealing rings designed for demanding industrial applications involving elevated temperatures, oils, fuels and compatible chemical media. Material selection should always be matched to the operating environment.
AS568 O-Ring Sizes and Dash Numbers
AS568 is a recognised inch-based O-ring dimensional standard that assigns specific dash numbers to standard inside diameters and cross-sectional sizes. Each AS568 dash number identifies a defined O-ring size, allowing engineers to specify replacement seals using a standard reference rather than individual measurements.
Imperial O-ring assortments can contain selections from the following AS568 cross-sectional series:
| AS568 Dash Series | Cross-Section (inch) | Cross-Section (mm) |
|---|---|---|
| -004 to -050 | 0.070″ | 1.78 mm |
| -102 to -178 | 0.103″ | 2.62 mm |
| -201 to -284 | 0.139″ | 3.53 mm |
| -309 to -395 | 0.210″ | 5.33 mm |
| -425 to -475 | 0.275″ | 6.99 mm |
The AS568 standard also includes smaller special sizes and additional dimensional references outside the principal series shown above. Individual imperial O-ring kits may contain selections from one or several cross-sectional groups. The available dash numbers and quantities depend on the chosen assortment.
For complete dimensional references, including inside diameters and cross-sections, visit our O-Ring Size Charts.
Imperial O-Ring Kit Applications
Imperial O-ring assortments are used across a wide range of engineering and industrial applications where equipment requires replacement elastomer sealing components.
Industrial Maintenance
Imperial 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 imperial 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
Imperial assortments are used in industrial machinery, manufacturing equipment and mechanical assemblies requiring replacement O-rings in standard imperial sizes.
Pumps and Valves
Imperial 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 imperial 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 imperial O-ring assortments and customer-specific kit requirements.
Standard and Custom Kits
We can review standard AS568 and imperial assortments alongside bespoke kits containing selected dimensions, compounds and quantities.
Multiple Elastomer Materials
Imperial 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.
Imperial O-Ring Kits FAQs
What is a imperial O-ring kit?
An imperial O-ring kit is an assortment containing O-rings manufactured to inch-based dimensional sizes. These kits typically include multiple inside diameters and cross-sections organised within a compartmentalised storage case.
What is an AS568 O-ring kit?
An AS568 O-ring kit contains a selection of sealing rings identified using the AS568 dash-number sizing system. Each dash number corresponds to a defined inside diameter and cross-sectional size.
What sizes are included in imperial O-ring kits?
Kit contents vary depending on the assortment. Standard selections may include commonly used AS568 dash numbers across different cross-sectional series, while custom kits can contain customer-specified dimensions and quantities.
What is the difference between AS568 and BS1806 O-rings?
AS568 is an inch-based dimensional standard widely used internationally, while BS1806 is a historical British imperial O-ring standard. Many dimensions correspond, but individual size references and tolerances should be verified before substitution.
What materials are available for imperial O-ring kits?
Imperial O-ring assortments can be supplied in materials including NBR, EPDM and FKM, subject to the required kit configuration and availability. Specialist elastomer requirements can also be reviewed.
Can you supply custom AS568 O-ring kits?
Yes. International Seal can review custom AS568 O-ring assortments containing selected dash numbers, elastomer materials and quantities for industrial customers, distributors and OEMs.
Need Imperial O-Ring Kits?
International Seal supplies imperial O-ring kits and AS568 assortment sets for industrial engineering, machinery maintenance and equipment servicing throughout the UK and Europe. Whether you require standard imperial O-ring selection boxes, material-specific assortments or custom kits containing selected AS568 dash numbers and quantities, our team can review your requirements and provide a competitive quotation.
Send us your required O-ring material, AS568 or BS1806 references, preferred kit configuration and quantity. Existing assortment references and customer-defined contents lists can also be reviewed.