Seals & O-Rings

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

How do seals and O-rings work?
A seal or O-ring is seated 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 seals and O-rings
Seals 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 seal and O-ring kits for general maintenance or when looking after a range of sealed part to ensure the correct size is available.

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

Sizes vary between seal and ring 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 seals and 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. 196-5804
BrandRS PRO
SGD21.29
1 Bag of 5
Bag(s)
78mm 83mm 2.5mm O-Ring Seal FKM -15°C +200°C
RS Stock No. 196-5030
BrandRS PRO
SGD9.98
1 Bag of 50
Bag(s)
21.5mm 27.5mm 3mm O-Ring Seal Nitrile Rubber -30°C +90°C
RS Stock No. 877-7795
Mfr. Part No.40411035
SGD11.76
Each
units
18mm 35mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 196-5929
BrandRS PRO
SGD8.97
1 Bag of 10
Bag(s)
28.3mm 31.86mm 1.78mm O-Ring Seal FKM -15°C +200°C
RS Stock No. 204-0963
Mfr. Part No.113396
SGD8.71
1 Bag of 10
Bag(s)
13.6mm 19mm 2.7mm O-Rings Fluorocarbon Elastomer -25°C +200°C
RS Stock No. 211-9083
BrandRS PRO
SGD3.772
Each (In a Pack of 5)
units
30mm 47mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 204-0946
Mfr. Part No.108800
SGD7.26
1 Bag of 50
Bag(s)
8.9mm 14.3mm 2.7mm O-Rings Nitrile Rubber -30°C +100°C
RS Stock No. 196-4880
BrandRS PRO
SGD4.43
1 Bag of 50
Bag(s)
20mm 24mm 2mm O-Ring Seal Nitrile Rubber -30°C +90°C
RS Stock No. 196-4780
BrandRS PRO
SGD9.86
1 Bag of 50
Bag(s)
31.42mm 36.66mm 2.62mm O-Ring Seal Nitrile Rubber -30°C +90°C
RS Stock No. 211-9140
BrandRS PRO
SGD3.868
Each (In a Pack of 5)
units
35mm 52mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 829-3685
Mfr. Part No.40411215
SGD14.42
Each
units
28mm 47mm 5mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 295-2105
Mfr. Part No.722836
SGD14.85
1 Bag of 2
Bag(s)
30mm 50mm 10mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 196-5739
BrandRS PRO
SGD14.45
1 Bag of 10
Bag(s)
46mm 50mm 2mm O-Ring Seal FKM -15°C +200°C
RS Stock No. 879-2782
Mfr. Part No.40412131
SGD13.08
Each
units
35mm 45mm 7mm Shaft Seal 72 NBR 902 -30°C +100°C
RS Stock No. 196-5951
BrandRS PRO
SGD23.55
1 Bag of 50
Bag(s)
13.1mm 18.34mm 2.62mm O-Ring Seal FKM -15°C +200°C
RS Stock No. 196-6014
BrandRS PRO
SGD11.82
1 Bag of 5
Bag(s)
50.39mm 57.45mm 3.53mm O-Ring Seal FKM -15°C +200°C
RS Stock No. 196-6040
BrandRS PRO
SGD9.07
Each
units
132.94mm 140mm 3.53mm O-Ring Seal FKM -15°C +200°C
RS Stock No. 196-4875
BrandRS PRO
SGD5.08
1 Bag of 50
Bag(s)
16.5mm 20.5mm 2mm O-Ring Seal Nitrile Rubber -30°C +90°C
RS Stock No. 829-3607
Mfr. Part No.40413722
SGD11.65
Each
units
60mm 75mm 8mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 196-5404
BrandRS PRO
SGD5.29
1 Bag of 50
Bag(s)
14mm 16mm 1mm O-Ring Seal Nitrile Rubber -30°C +90°C