RH Nuttall is a leading UK rubber o ring supplier, based in the heart of Birmingham. Made from a huge choice of compounds, the units we supply are suitable for a wide variety of applications. The type depends on the application and is determined by the temperature required for sealing, the hardness in relation to the compression required to form a seal and the type of fluid that is in need of sealing.

RH Nuttall supplies o rings in Nitrile Rubber (NBR), EPDM Rubber, FKM, Silicone Rubber, as well as general purpose Neoprene rubber o rings. However, if you’re unsure as to what you require, we can supply samples of the o rings we stock on request. Just contact our friendly sales team today and they’ll be happy to help.

Rubber O rings UK Rubber O rings Birmingham

What are o rings?

An o ring is a mechanical gasket made from a circular loop of rubber. They are incredibly simple yet effective, and offer a brilliant solution for sealing between mating surfaces and the fluids or steams within an appliance.

The O rings we offer online and supply to businesses throughout the country are mass produced and are available in the standard ‘BS’ sizes, ranging from BS9001 to BS932.

These brilliant gaskets are arguably one of the most recognisable seals within a huge number of industries and the sheer number of sizes available (see size chart below) means there is a solution for practically any job.

 

BS001

0.74 x 1.02

1/32

3/32

1/32

BS002

1.07 x 1.27

3/64

9/64

3/64

BS003

1.42 x 1.52

1/16

3/16

1/16

BS004

1.78 x 1.78

5/64

13/64

1/16

BS005

2.57 x 1.78

3/32

7/32

1/16

BS006

2.90 x 1.78

1/8

1/4

1/16

BS007

3.68 x 1.78

5/32

9/32

1/16

BS008

4.47 x 1.78

3/16

5/16

1/16

BS009

5.28 x 1.78

7/32

11/32

1/16

BS010

6.07 x 1.78

1/4

3/8

1/16

BS011

7.65 x 1.78

5/16

7/16

1/16

BS012

9.25 x 1.78

3/8

1/2

1/16

BS013

10.82 x 1.78

7/16

9/16

1/16

BS014

12.42 x 1.78

1/2

5/8

1/16

BS015

14 x 1.78

9/16

11/16

1/16

BS016

15.6 x 1.78

5/8

3/4

1/16

BS017

17.17 x 1.78

11/16

13/16

1/16

BS018

18.77 x 1.78

3/4

7/8

1/16

BS019

20.35 x 1.78

13/16

15/16

1/16

BS020

21.95 x 1.78

7/8

1

1/16

BS021

23.52 x 1.78

15/16

1 1/16

1/16

BS022

25.12 x 1.78

1

1 1/8

1/16

BS023

26.7 x 1.78

1 1/16

1 3/16

1/16

BS024

28.3 x 1.78

1 1/8

1 1/4

1/16

BS025

29.87 x 1.78

1 13/16

1 5/16

1/16

BS026

31.47 x 1.78

1 1/4

1 3/8

1/16

BS027

33.05 x 1.78

1 5/16

1 7/16

1/16

BS028

34.65 x 1.78

1 3/8

1 1/2

1/16

BS029

37.82 x 1.78

1 1/2

1 5/8

1/16

BS030

41.0 x 1.78

1 5/8

1 3/4

1/16

BS031

44.17 x 1.78

1 3/4

1 7/8

1/16

BS032

47.35 x 1.78

1 7/8

2

1/16

BS033

50.52 x 1.78

2

2 1/8

1/16

BS034

53.7 x 1.78

2 1/8

2 1/4

1/16

BS035

56.87 x 1.78

2 1/4

2 3/8

1/16

BS036

60.05 x 1.78

2 3/8

2 1/2

1/16

BS037

63.22 x 1.781

2 1/2

2 5/8

1/16

BS038

66.4 x 1.78

2 5/8

2 3/4

1/16

BS039

69.57 x 1.78

2 3/4

2 7/8

1/16

BS040

72.75 x 1.78

2 7/8

3

1/16

 

The difference between o rings and flat washers

These gaskets differ from flat washers in that they are measured from their internal diameter (i/d) as well as cross section (c/s). By contrast, a washer size is obtained by taking measurements from the internal diameter, outside diameter and thickness.

There are differences in appearance, too. Whereas a washer has a flat appearance, an o ring is formed into an easily identifiable loop.

The benefits and common uses of o rings

Easy to install and reliable, o rings are malleable in their nature. This means they can be slightly compressed between mating surfaces to obtain a perfect seal and proves significantly valuable where the mating surface has slight imperfections, because it allows the rubber to compress and fill any gaps that are present.

Commonly found in pump shafts, aerospace equipment, gardening pumps and hydraulic cylinder pistons, o rings lend themselves to a wide range of applications. Our rubber o rings come in a variety of shore hardness ratings from 40sh right through to 90sh.

EPDM O Rings

Great for hot and cold water, steam and grease-laden applications. These gaskets are low cost and, with certain grades of EPDM, available for use in applications where temperatures exceed 180 degrees.

FKM O Rings

Great for oil and grease-laden applications. These gaskets offer good resistance to ozone, ageing and are low gas permeable with great temperature prevail.

Nitrile O Rings

These gaskets are perfect for grease, oils and lubricants due to their fantastic mechanical properties. Low cost, flexible at low temperatures, but equally capable of dealing with temperatures of 80 degrees on average.

How to order

You can order online or direct with our sales team. Samples of our gaskets are available on request and we’re just as comfortable dealing with large orders as we are those of the smaller variety. Whatever your requirement, we highly recommend contacting RH Nuttall today.