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
PHP7,186.04
1 Kit
Kit(s)
- - - Metric O-Ring Splicing Kit Viton® - -
RS Stock No. 689-596
BrandRS PRO
PHP184.43
1 Bag of 50
Bag(s)
3/16in 5/16in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 527-9908
BrandRS PRO
PHP919.21
1 Bag of 50
Bag(s)
20.22mm 1-1/16in 3.53mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 129-022
BrandRS PRO
PHP399.14
1 Bag of 50
Bag(s)
6.07mm 9.52mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 128-934
BrandRS PRO
PHP347.42
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
PHP816.09
1 Bag of 50
Bag(s)
16.7mm 24mm 1.5mm Bonded Seal Nitrile Rubber -10°C +80°C
RS Stock No. 527-9942
BrandRS PRO
PHP1,071.30
1 Bag of 50
Bag(s)
25mm 1-1/4in 3.53mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 689-473
BrandRS PRO
PHP722.61
1 Bag of 50
Bag(s)
13.74mm 20.57mm 2.03mm Bonded Seal Nitrile Rubber -10°C +80°C
RS Stock No. 128-899
BrandRS PRO
PHP246.31
1 Bag of 50
Bag(s)
9.6mm 14.4mm 2.4mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-675
BrandRS PRO
PHP270.05
1 Bag of 50
Bag(s)
9/16in 3/4in 3/32in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 211-9263
BrandRS PRO
PHP170.488
Each (In a Pack of 5)
units
50mm 72mm 10mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 211-9027
BrandRS PRO
PHP136.954
Each (In a Pack of 5)
units
25mm 52mm 10mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 128-805
BrandRS PRO
PHP223.31
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
PHP223.31
1 Bag of 50
Bag(s)
6.1mm 9.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 527-9740
BrandRS PRO
PHP399.14
1 Bag of 50
Bag(s)
2.9mm 1/4in 1.78mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 129-016
BrandRS PRO
PHP399.14
1 Bag of 50
Bag(s)
5.28mm 8.73mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 527-9778
BrandRS PRO
PHP430.30
1 Bag of 50
Bag(s)
5.28mm 11/32in 1.78mm O-Ring Seal Silicone -60°C 200°C
RS Stock No. 689-574
BrandRS PRO
PHP175.83
1 Bag of 50
Bag(s)
1/8in 1/4in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 211-9005
BrandRS PRO
PHP109.504
Each (In a Pack of 5)
units
25mm 35mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 129-000
BrandRS PRO
PHP390.24
1 Bag of 50
Bag(s)
4.47mm 7.93mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
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