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. 245-9612
BrandRS PRO
SGD199.92
1 Kit
Kit(s)
- - - Metric O-Ring Splicing Kit Viton® - -
RS Stock No. 521-5752
BrandRS PRO
SGD76.14
Each
units
- 25.4mm - O-Ring Seal Carbon Steel, Stainless Steel - -
RS Stock No. 689-574
BrandRS PRO
SGD4.88
1 Bag of 50
Bag(s)
1/8in 1/4in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-669
BrandRS PRO
SGD6.67
1 Bag of 50
Bag(s)
1/2in 11/16in 3/32in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 129-000
BrandRS PRO
SGD10.81
1 Bag of 50
Bag(s)
4.47mm 7.93mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 128-805
BrandRS PRO
SGD6.19
1 Bag of 50
Bag(s)
4.1mm 7.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 128-984
BrandRS PRO
SGD10.81
1 Bag of 50
Bag(s)
2.9mm 6.35mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 129-022
BrandRS PRO
SGD11.06
1 Bag of 50
Bag(s)
6.07mm 9.52mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 689-502
BrandRS PRO
SGD33.88
1 Bag of 50
Bag(s)
27.05mm 34.93mm 2.5mm Bonded Seal Nitrile Rubber -10°C +80°C
RS Stock No. 128-849
BrandRS PRO
SGD6.85
1 Bag of 50
Bag(s)
12.1mm 15.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 128-928
BrandRS PRO
SGD8.74
1 Bag of 50
Bag(s)
19.5mm 25.5mm 3mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-530
BrandRS PRO
SGD20.28
1 Bag of 50
Bag(s)
12.7mm 18mm 1.5mm Bonded Seal Nitrile Rubber -10°C +80°C
RS Stock No. 128-934
BrandRS PRO
SGD9.46
1 Bag of 50
Bag(s)
24.5mm 30.5mm 3mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-546
BrandRS PRO
SGD22.62
1 Bag of 50
Bag(s)
16.7mm 24mm 1.5mm Bonded Seal Nitrile Rubber -10°C +80°C
RS Stock No. 211-8945
BrandRS PRO
SGD2.918
Each (In a Pack of 5)
units
20mm 30mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 128-833
BrandRS PRO
SGD6.85
1 Bag of 50
Bag(s)
10.1mm 13.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-619
BrandRS PRO
SGD5.04
1 Bag of 50
Bag(s)
1/4in 3/8in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-489
BrandRS PRO
SGD21.30
1 Bag of 50
Bag(s)
17.28mm 23.8mm 2.03mm Bonded Seal Nitrile Rubber -10°C +80°C
RS Stock No. 128-978
BrandRS PRO
SGD12.05
1 Bag of 50
Bag(s)
39.5mm 45.5mm 3mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 749-575
BrandRS PRO
SGD1.25
Each (In a Pack of 4)
units
5mm 9.5 → 10.5mm 3.7mm V-Ring Seal Nitrile Rubber -40°C +100°C
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