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O Rings

O Rings

Country/Region china
Company M.Barnwell Services Limited.
Categories O Ring Kits
Update 2016-08-02 15:19:51
ICP License Issued by the Chinese Ministry
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O Rings

The UK’s largest selection of O Rings

M Barnwell Services are the largest independent manufacture, stockist and distributor of O Rings and Back-Up Rings in the UK. With 50 million O Rings and Back-Up Rings in stock we supply to over 5000 customers globally every month quickly and reliably.

We have an extensive range of O Ring materials including Perlast (PPE), Nitrile (NBR), Hydrogenated Nitrile (HNBR), Viton (FKM/FPM), Viton A, Viton B, Viton GF, Viton GLT, Viton GFLT, Viton ETP, Ethylene Propylene (EPDM) and Silicone (VMQ). These can all be measured to imperial (BS1806, ISO 3601) and metric (BS4518) sizes, shore hardness and to a range of International, National and industry specifications, grades and approval standards.

We also offer a comprehensive range of quality FEP/PFA Encapsulated Rubber Seals.

If you would like more information about our range download our catalogue, visit the Seal Maker Page or contact a member of the team.


No limitation to dimensions with over 10,000 different sizes available from stock


Nitrile (NBR), Viton (FKM/FPM), Ethylene propylene (EPDM), EnDura (Steam Resistant), Silicone (VMQ), Fluorosilicone (FVMQ), ), Viton A, Viton B, Viton GF, Viton GLT, Viton GFLT, Viton ETP

Perfluoroelastomers (FFKM) including: Perlast, Perlast Ice, Simriz, Gplast, Kalrez, Chemraz, and others

Polyurethane (AU), Hydrogenated Nitrile (HNBR), Aflas (FEPM), Polytetrafluoroethylene (PTFE), Neoprene (CR), Encapsulated (FEP/PFA) Styrene Butadiene (SBR), Anti Explosive Decompression Compounds (AED), Viton Extreme, Metal Detectable, X-Ray Detectable, & many more.

O-Ring shore hardness - range from 40 Shore to 90 Shore.

O-Ring colours - A range of different colours available, which subject to minimum production quantities

O-Ring installation - Coating to aid lubrication can also be supplied


British Imperial (BS1806) and Metric (BS4518). European Metric (ISO 3601), including German (DIN 3771), Swedish (SMS 1586/1588) and French (NFT 47 501). American (SAE, AMS, AS568) and Japanese Metric (JISB 2401).


WRC, WRAS, FDA, DVGW, KTW, BGVV, KIWA, USP Class VI, NSF, ACS, EU2002/72, EN681-1, EN549, 3A Sanitary, NORSOK and EN682

Manufacturing Capabilities

Injection Moulded, Compression Moulded, Hot Vulcanised, Room Temperature Vulcanised (RTV), Butt / Scarf Joints, CNC Machined, Cleanroom Prepared


O-Ring Metric and Imperial Kits, Selection Boxes, Splicing Kits & Top-up Bags are available

Bespoke O Ring Kits and selection Boxes are also available

Associated Products

Encapsulated O-Rings (FEP/PFA), Lube, Gauge / O Ring material tester, Quad Rings (X-Rings) / Nu-lip Rings, O-Ring Cord, Tube, Anti-extrusion Rings, Splicing Kits, Back-up Rings, Anti-extrusion Rings, Lubricants and Adhesives

Product Tags:

o-ring splicing kits


viton o-rings metric


viton extreme o-rings

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