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. 828-9150
Mfr. Part No.40413790
R 219.85
Each
units
40mm 80mm 10mm Shaft Seal 72 NBR 902 -40°C +100°C
RS stock no. 689-782
BrandRS PRO
R 228.29
1 Bag of 50
Bag(s)
1 3/16in 1 7/16in 1/8in O-Ring Seal Nitrile Rubber -30°C +120°C
RS stock no. 211-8923
BrandRS PRO
R 27.93
Each (In a Pack of 5)
units
18mm 30mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS stock no. 255-3809
Mfr. Part No.722338
BrandPaulstra
R 110.33
1 Bag of 2
Bag(s)
38mm 52mm 7mm Shaft Seal Nitrile Rubber -30°C +110°C
RS stock no. 527-9885
BrandRS PRO
R 260.93
1 Bag of 50
Bag(s)
18.72mm 15/16in 2.62mm O-Ring Seal Silicone -60°C +200°C
RS stock no. 128-861
BrandRS PRO
R 57.70
1 Bag of 50
Bag(s)
5.6mm 10.4mm 2.4mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS stock no. 689-530
BrandRS PRO
R 190.91
1 Bag of 50
Bag(s)
12.7mm 18mm 1.5mm Bonded Seal Nitrile Rubber -10°C +80°C
RS stock no. 527-9908
BrandRS PRO
R 238.12
1 Bag of 50
Bag(s)
20.22mm 1-1/16in 3.53mm O-Ring Seal Silicone -60°C +200°C
RS stock no. 527-9992
BrandRS PRO
R 407.63
1 Bag of 50
Bag(s)
32.92mm 1-9/16in 3.53mm O-Ring Seal Silicone -60°C +200°C
RS stock no. 828-9194
Mfr. Part No.40412556
R 98.54
Each
units
18mm 28mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS stock no. 828-9141
Mfr. Part No.40413732
R 219.09
Each
units
60mm 80mm 10mm Shaft Seal 72 NBR 902 -40°C +100°C
RS stock no. 255-3540
Mfr. Part No.722670
BrandPaulstra
R 142.73
1 Bag of 2
Bag(s)
25mm 35mm 7mm Shaft Seal Nitrile Rubber -30°C +110°C
RS stock no. 528-0021
BrandRS PRO
R 432.14
1 Bag of 50
Bag(s)
37.7mm 1-3/4in 3.53mm O-Ring Seal Silicone -60°C +200°C
RS stock no. 128-833
BrandRS PRO
R 62.54
1 Bag of 50
Bag(s)
10.1mm 13.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS stock no. 255-3865
Mfr. Part No.722931
BrandPaulstra
R 149.04
1 Bag of 2
Bag(s)
42mm 62mm 8mm Shaft Seal Nitrile Rubber -30°C +110°C
RS stock no. 689-489
BrandRS PRO
R 205.29
1 Bag of 50
Bag(s)
17.28mm 23.8mm 2.03mm Bonded Seal Nitrile Rubber -10°C +80°C
RS stock no. 255-3253
Mfr. Part No.772023
BrandPaulstra
R 134.82
1 Bag of 2
Bag(s)
8mm 22mm 7mm Shaft Seal Nitrile Rubber -30°C +110°C
RS stock no. 128-990
BrandRS PRO
R 99.75
1 Bag of 50
Bag(s)
3.68mm 7.14mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS stock no. 879-2851
Mfr. Part No.40411325
R 158.21
Each
units
45mm 58mm 7mm Shaft Seal 72 NBR 902 -30°C +100°C
RS stock no. 295-1950
Mfr. Part No.722477
BrandPaulstra
R 166.55
1 Bag of 2
Bag(s)
8mm 18mm 5mm Shaft Seal Nitrile Rubber -30°C +110°C