Delivering Fluid Sealing Solutions Since 1972

Sealing Washers

The UK’s specialists in Sealing Washers, Bonded Seals and Bonded Washers

M Barnwell Services stock standard Imperial and Metric Sealing Washers in a vast range of dimensions and materials.

Sealing washers are also known as shim washers or rubber penny washers.

Standard flat washers and lipped washers are produced adapting injection or compression moulding from a vast scope of materials, including Perfluoroelastomers (FFKM), Polytetrafluoroethylene (PTFE), Polyurethane (AU), Nitrile (NBR), Ethylene-Propylene (EPDM), Hydrogenated Nitrile (HNBR). Non-standard and custom shaped washers can be manufactured on demand.

Sealing Washers are certified among others to FDA, EC1935/2004 & EC2023/2006Wrc, WRAS, USP Class VI, 3-A 18-03 Sanitary Standards and KTW.

Sealing Washers

Sealing washers are available in many designs and are used for a vast range of assemblies. They are situated underneath a nut, a joint or an axle bearing to soften rubbing, spread pressure, keep components apart, prevent leakage or stop unfastening.


Rubber washers are generally used between mating faces to stop vibration from spreading or to ensure a seal. They play a vital role when they’re used with fastening appliance, preventing fully tightened fastener from damaging its surface area.

They are particularly helpful in face seal applications, where expanse is restricted and where there is inadequate groove depth.


Ideal for surfaces coated with paint, plating or enamel. Suitable for use with water, mineral base oils and alkalis, over a temperature range of -10°C to +80°C. Washers for screwed assemblies offer an up to 200 lbf/in2 working pressure. Aluminium washers are great for use at oil drain points due to the softness of the material. It allows forming a tight seal when the stress is applied. Copper washers are equally useful, with certain products precisely softened and are excellent for outdoor applications. Pressure washers are rigid, elastic, and does not demand regular maintenance.

Extensively used in  Automotive & Motor, Water & Pump, EngineeringMRO, Manufacturing Industries are particularly useful on sumps, gearboxes, axles and drain plugs.

We can also supply a range of BODOK Seals. These specialist seals are used for gas applications to ensure an air-tight seal between the cylinder yoker or regulator of any medical device.

Sealing WashersSealing WashersSealing Washers

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

E & OE.


There is no limitation, inch and metric dimensions can be supplied on request.


BARLOC Washer, BARLON Washer, Bonded with Rubber, Flat, Spring, Split, Moulded, CNC, Turned, Punched, Lathe-Cut, Tab, Lock, Shim


Steel, Copper, Stainless Steel, Aluminium, Brass, Red Fibre, Fibre, Rubber, Plastic, Cork, Perfluoroelastomers (FFKM), Polyurethane (AU/EU), Polyamide Nylon PA, Acetal Resin POM, Peek, Polytetrafluoroethylene (PTFE - Virgin and Filled eg Glass, Bronze, Carbon), Nitrile (NBR), Fluorocarbon (FKM/FPM), Ethylene Propylene (EPDM), Silicone (VMQ), Fluorosilicone (FVMQ), Neoprene (CR), Polyethylene (PE), Polypropylene (PP), Phenolic Resin, Hydrogenated Nitrile (HNBR), Copper / Nickel CuNi, Cast Iron (GT) and many more.


DIN7603 A, ISO7089 / DIN125-1A, ISO7091 / DIN126, DIN7349, ISO7092, DIN127B, DIN7980 / BS4464A, DIN137A, DIN137B, DIN93, DIN463, DIN462, DIN432, DIN988, DIN436


FDA, EC1935/2004 & EC2023/2006 European Regulations, WRC & WRAS, USP Class VI, 3A 18-03 Sanitary, KTW, DVGW, NSF ANSI, BGVV, KIWA, ACS, EU2002/72, EN681-1, EN549, EN682


A range of Copper Washer Kits, Red Fibre Kits, Bonded Washer Kits, Sump Washer Kits and Selection Boxes available.
Bespoke kits also available upon request.

Associated Products

O Rings, Fasteners, Kits, Grease Nipples, Sealants & Adhesives, Circlips, Retaining Rings