Gaskets & O-Rings

Gaskets and O-rings are used to join two parts of a machine, engine or another often mechanical assembly by filling the space between both parts, creating a filled and sealed space in between. This seal prevents particle, vapour and fluid ingress or leakage to protect and maintain the joint or pressure whilst keeps debris out, ensuring proper function and safety. Gaskets and O-rings are used in various fields and industries including automotive, aerospace and general engineering.

How do gaskets and O-rings work?

A gasket or O-ring is seated between two parts, often in a groove in one of the two parts to be joined, then compressed between these two components to the corresponding groove creating a securely sealed joint. They can be used in dynamic joints where there is movement as well as in static or fixed applications.

Types of gaskets and O-rings

Gaskets and O-rings come in various materials suited to different purposes. Some have a high-temperature tolerance for use in both hot and cold applications, while others are made to be chemically resistant for use in lab or test equipment. Available in a wide range of sizes both in single size packs or in kits for general maintenance or when looking after a range of sealed part to ensure the correct size is available.

Gaskets and O-rings are typically made of elastomers like nitrile rubber and silicone, but they also come in plastics and other materials. This variety of material allows for specific gaskets and O-rings to be used to ensure the best fitting and most reliable seal.

Sizes vary between types both in diameter and thickness, these variations help provide an exact and precise seal to protect the joint. Both Metric and Imperial sizes are available to replace new and old gaskets and o-rings whether maintaining modern parts or older machines, engines and other mechanical parts.


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Description Price Inside Diameter Outside Diameter Thickness Type Material Minimum Operating Temperature Maximum Operating Temperature
RS Stock No. 689-596
BrandRS PRO
PHP192.20
1 Bag of 50
Bag(s)
3/16in 5/16in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-675
BrandRS PRO
PHP419.74
1 Bag of 50
Bag(s)
9/16in 3/4in 3/32in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 128-805
BrandRS PRO
PHP258.39
1 Bag of 50
Bag(s)
4.1mm 7.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 128-811
BrandRS PRO
PHP258.39
1 Bag of 50
Bag(s)
6.1mm 9.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 128-861
BrandRS PRO
PHP244.10
1 Bag of 50
Bag(s)
5.6mm 10.4mm 2.4mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 211-8737
BrandRS PRO
PHP107.372
Each (In a Pack of 5)
units
6mm 22mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 689-574
BrandRS PRO
PHP192.20
1 Bag of 50
Bag(s)
1/8in 1/4in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-653
BrandRS PRO
PHP334.26
1 Bag of 50
Bag(s)
7/16in 5/8in 3/32in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-754
BrandRS PRO
PHP549.83
1 Bag of 50
Bag(s)
1in 1 1/4in 1/8in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 211-8715
BrandRS PRO
PHP99.424
Each (In a Pack of 5)
units
5mm 16mm 6mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 689-619
BrandRS PRO
PHP198.69
1 Bag of 50
Bag(s)
1/4in 3/8in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-603
BrandRS PRO
PHP192.20
1 Bag of 50
Bag(s)
7/32in 11/32in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 196-5956
BrandRS PRO
PHP349.41
1 Bag of 10
Bag(s)
25.07mm 30.31mm 2.62mm O-Ring FKM -15°C +200°C
RS Stock No. 196-5498
BrandRS PRO
PHP158.09
1 Bag of 50
Bag(s)
24.5mm 27.5mm 1.5mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5386
BrandRS PRO
PHP178.06
1 Bag of 50
Bag(s)
3mm 5mm 1mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5998
BrandRS PRO
PHP401.55
1 Bag of 10
Bag(s)
20.22mm 27.28mm 3.53mm O-Ring FKM -15°C +200°C
RS Stock No. 196-5028
BrandRS PRO
PHP318.87
1 Bag of 50
Bag(s)
19mm 25mm 3mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-4906
BrandRS PRO
PHP412.12
1 Bag of 50
Bag(s)
42mm 46mm 2mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 689-697
BrandRS PRO
PHP349.52
1 Bag of 50
Bag(s)
11/16in 7/8in 3/32in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 196-6055
BrandRS PRO
PHP927.60
1 Bag of 5
Bag(s)
46.99mm 57.65mm 5.33mm O-Ring FKM -15°C +200°C