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. 196-5074
BrandRS PRO
SGD7.40
1 Bag of 10
Bag(s)
75mm 81mm 3mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5916
BrandRS PRO
SGD14.05
1 Bag of 50
Bag(s)
8.73mm 12.29mm 1.78mm O-Ring FKM -15°C +200°C
RS Stock No. 196-5200
BrandRS PRO
SGD26.50
1 Bag of 50
Bag(s)
40mm 52mm 6mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-4790
BrandRS PRO
SGD17.67
1 Bag of 25
Bag(s)
107.62mm 112.86mm 2.62mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-6041
BrandRS PRO
SGD9.93
Each
units
145.64mm 152.7mm 3.53mm O-Ring FKM -15°C +200°C
RS Stock No. 196-5876
BrandRS PRO
SGD8.24
Each
units
120mm 126mm 3mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5975
BrandRS PRO
SGD17.57
1 Bag of 10
Bag(s)
58.42mm 63.66mm 2.62mm O-Ring FKM -15°C +200°C
RS Stock No. 196-5793
BrandRS PRO
SGD12.26
1 Bag of 10
Bag(s)
25mm 30mm 2.5mm O-Ring FKM -15°C +200°C
RS Stock No. 196-5007
BrandRS PRO
SGD15.80
1 Bag of 50
Bag(s)
40mm 45.3mm 2.65mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5665
BrandRS PRO
SGD10.70
1 Bag of 25
Bag(s)
14mm 17mm 1.5mm O-Ring FKM -15°C +200°C
RS Stock No. 196-4991
BrandRS PRO
SGD4.19
1 Bag of 20
Bag(s)
54mm 59mm 2.5mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 527-9920
BrandRS PRO
SGD22.04
1 Bag of 50
Bag(s)
23.4mm 1 3/16in 3.53mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 196-5421
BrandRS PRO
SGD4.19
1 Bag of 50
Bag(s)
27mm 29mm 1mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-4750
BrandRS PRO
SGD6.61
1 Bag of 25
Bag(s)
34.65mm 38.21mm 1.78mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5381
BrandRS PRO
SGD6.06
1 Bag of 50
Bag(s)
1.6mm 3.6mm 1mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5503
BrandRS PRO
SGD4.40
1 Bag of 50
Bag(s)
28mm 31mm 1.5mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5877
BrandRS PRO
SGD8.24
Each
units
130mm 136mm 3mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5076
BrandRS PRO
SGD6.94
1 Bag of 10
Bag(s)
79mm 85mm 3mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5478
BrandRS PRO
SGD4.27
1 Bag of 50
Bag(s)
12mm 15mm 1.5mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5053
BrandRS PRO
SGD4.98
1 Bag of 50
Bag(s)
44mm 50mm 3mm O-Ring Nitrile Rubber -30°C +90°C