Precision orings for industrial applications.
Established 1980
Material compounds
Sizes & related standards
Procurement & Delivery
Sealparts Ltd supplies o-rings to order from our established network of oring manufacturers and distributors
Established in 1980, Sealparts has over four decades of experience sourcing O-rings for professional customers across industrial, engineering, and OEM sectors.
We supply to specification from a robust, long-standing supply chain built around quality, reliability, and traceability
We supply O-rings in a full range of standard and specialist material compounds, matched to the performance requirements of each application. Whether the priority is chemical resistance, temperature tolerance, flexibility, or long-term durability, we work with a proven network of manufacturers to deliver the right compound for your specification.
Our most commonly sourced material compounds include Nitrile (NBR), Viton® (FKM), EPDM, Silicone, and PTFE, with additional options such as FFKM and HNBR available for high-performance or aggressive environments. Each compound is available in multiple hardness grades and can be supplied with relevant certifications on request. Selection is based on compatibility with your media, temperature range, and required lifecycle.
We do not promote “general purpose” stock. Instead, we procure to order, ensuring the correct material compound is supplied every time — from reputable sources with traceable batch data where required. If you are unsure of the exact compound needed, we are happy to assist with guidance or review your existing specification.
We supply O-rings in all standard international sizing formats, including British Standard (BS), AS568 (Imperial), ISO 3601 (Metric), DIN, and JIS. Each O-ring is sourced to precise internal diameter (ID) and cross-section (CS) dimensions, with full tolerance data available on request.
Our procurement model ensures you receive O-rings manufactured to the correct dimensional standard, matched to your equipment or design drawings. Whether you are replacing a known size or specifying a new one, we can assist with cross-referencing, conversion, and non-standard dimensions where appropriate.
We do not supply approximate equivalents or substitute dimensions without explicit agreement. Every O-ring is sourced to your stated requirements from a traceable and trusted source. Technical drawings or datasheets can be provided to support specification or approval processes..
orings.co.uk operates on a procurement-based model. We do not hold stock; instead, we source O-rings to order from our established network of manufacturers and distributors. This approach allows us to maintain control over quality, avoid unnecessary substitutions, and offer a wider range of compounds, sizes, and standards than typical stockholding suppliers.
Lead times vary depending on the material compound, size, and origin. Common items from UK or EU partners can often be supplied within 1–3 working days. Specialist compounds or less common sizes sourced from Japan may take longer. We will always advise realistic lead times and provide updates throughout the procurement process.
Every order is handled with attention to detail and traceability. We supply to OEMs, maintenance teams, and technical buyers who rely on consistency, documentation, and service — not assumptions. If we identify inconsistencies or risks in your request, we will raise them before proceeding