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. 689-754
BrandRS PRO
SGD14.20
1 Bag of 50
Bag(s)
1in 1 1/4in 1/8in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 295-2379
Mfr. Part No.722938
SGD30.13
1 Bag of 2
Bag(s)
55mm 70mm 8mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 211-8721
BrandRS PRO
SGD2.566
Each (In a Pack of 5)
units
6mm 16mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 128-906
BrandRS PRO
SGD7.65
1 Bag of 50
Bag(s)
11.6mm 16.4mm 2.4mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 255-3326
Mfr. Part No.722106
SGD19.17
1 Bag of 2
Bag(s)
15mm 30mm 7mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 828-9208
Mfr. Part No.40413744
SGD27.07
Each
units
75mm 90mm 8mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 255-3483
Mfr. Part No.722642
SGD12.99
1 Bag of 2
Bag(s)
20mm 40mm 7mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 128-956
BrandRS PRO
SGD13.03
1 Bag of 50
Bag(s)
31.5mm 37.5mm 3mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 828-9248
Mfr. Part No.40413643
SGD11.76
Each
units
19mm 32mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 527-9891
BrandRS PRO
SGD25.24
1 Bag of 50
Bag(s)
18.66mm 1in 3.53mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 255-3540
Mfr. Part No.722670
SGD13.33
1 Bag of 2
Bag(s)
25mm 35mm 7mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 879-2754
Mfr. Part No.40412976
SGD15.44
Each
units
40mm 55mm 8mm Shaft Seal 72 NBR 902 -30°C +100°C
RS Stock No. 255-3477
Mfr. Part No.722163
SGD12.44
1 Bag of 2
Bag(s)
20mm 38mm 8mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 295-2155
Mfr. Part No.722245
SGD19.77
1 Bag of 2
Bag(s)
35mm 72mm 7mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 527-9778
BrandRS PRO
SGD12.39
1 Bag of 50
Bag(s)
5.28mm 11/32in 1.78mm O-Ring Seal Silicone -60°C 200°C
RS Stock No. 211-9061
BrandRS PRO
SGD3.632
Each (In a Pack of 5)
units
30mm 42mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 829-3632
Mfr. Part No.40413199
SGD10.33
Each
units
15mm 30mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 255-3556
Mfr. Part No.722799
SGD13.46
1 Bag of 2
Bag(s)
25mm 40mm 7mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 211-9184
BrandRS PRO
SGD4.328
Each (In a Pack of 5)
units
40mm 62mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 295-2357
Mfr. Part No.792777
SGD14.47
1 Bag of 2
Bag(s)
55mm 68mm 8mm Shaft Seal Nitrile Rubber -30°C +110°C