Delivering Fluid Sealing Solutions Since 1972

Unrivalled Technical Support

Over 40 years of engineering knowledge and development

35,000 Stock Lines

The UK’s largest stockist and distributor of fluid sealing products

International Distribution

Over 5,000 customers globally depend on our services

Total service guaranteed

Quality accredited inspection process

The UK’s Leading Independent Stockist, Manufacturer and Distributor of Fluid Sealing Products and Services

Founded in 1972, M Barnwell Services is a family business and prides itself on providing expert industry knowledge, technical expertise, products and services to over 5000 customers globally. They include established partnerships with the Worlds leading OEMs in Automotive, Agriculture, Construction and Compressor Pump and Valve. Our range of fluid sealing products include O Rings, Oil Seals, Rotary Shaft Seals, Hydraulic Seals, Hygienic (FDA) SealsPneumatic Seals, Gaskets, Fasteners, Sealing Kits, Shaft Repair KitsSpecial Rubber Mouldings, D Rings and many more.

We aim to work in partnership with you to reduce your supplier base, inventory and long-term costs. Applying our unique product knowledge to your specific needs, we will always offer the right sealing solution for your industry and application.

We have a selection of fluid sealing products available to buy online – Visit Our Shop

About Us Case Studies


Twenty-Five Years of Service
Twenty-Five Years of Service

Twenty-Five Years of Service at M Barnwell Services M Barnwell Services, the UK’s leading independent […]

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ISO3601-1: Inside diameters, cross-sections, tolerances and designation codes ISO3601-1 specialises in the inside diameters, cross-sections, […]

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Features of Mechanical Seals

Features of a Proper Mechanical Seal Features of Mechanical Seals – Mechanical seals come in […]

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Types of Hydraulic Seals

Hydraulic Seals Types Hydraulic and Pneumatic Seals are moulded according to working temperature, cylinder speed, […]

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NES 337 O Rings

High Performance NES 337 O Rings: Defence Standard for Naval Ships & Submarines

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ISO3601-1: Inside diameters, cross-sections, tolerances and designation codes, check out our new blog:…