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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Viewing 141 - 160 of 472 products
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Description Price Inside Diameter Outside Diameter Thickness Type Material Minimum Operating Temperature Maximum Operating Temperature
RS stock no. 900-3162
Mfr. Part No.8112801
BrandAltech
R 2.223
Each (In a Pack of 50)
units
7mm 9.4mm - - NBR 70 -30°C +120°C
RS stock no. 689-827
BrandRS PRO
R 238.78
1 Bag of 50
Bag(s)
1 7/16in 1 11/16in 1/8in O-Ring Seal Nitrile Rubber -30°C +120°C
RS stock no. 877-7795
Mfr. Part No.40411035
R 112.04
Each
units
18mm 35mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS stock no. 879-2814
Mfr. Part No.40412532
R 175.06
Each
units
35mm 62mm 10mm Shaft Seal 72 NBR 902 -30°C +100°C
RS stock no. 689-798
BrandRS PRO
R 233.97
1 Bag of 50
Bag(s)
1 1/4in 1 1/2in 1/8in O-Ring Seal Nitrile Rubber -30°C +120°C
RS stock no. 129-044
BrandRS PRO
R 111.91
1 Bag of 50
Bag(s)
9.25mm 12.7mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS stock no. 879-2794
Mfr. Part No.40412189
R 202.78
Each
units
48mm 72mm 8mm Shaft Seal 72 NBR 902 -30°C +100°C
RS stock no. 828-9185
Mfr. Part No.40412079
R 98.41
Each
units
16mm 26mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS stock no. 308-1018
Mfr. Part No.SP-202804/SEAL
BrandSKF
R 97.47
Each
units
20mm 28mm 4mm Shaft Seal Nitrile Rubber -40°C +80°C
RS stock no. 828-9113
Mfr. Part No.40412525
R 122.26
Each
units
28mm 40mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS stock no. 255-3922
Mfr. Part No.722899
BrandPaulstra
R 142.28
1 Bag of 2
Bag(s)
48mm 62mm 8mm Shaft Seal Nitrile Rubber -30°C +110°C
RS stock no. 211-9061
BrandRS PRO
R 34.064
Each (In a Pack of 5)
units
30mm 42mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS stock no. 828-9242
Mfr. Part No.40411107
R 95.00
Each
units
12mm 24mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS stock no. 879-2782
Mfr. Part No.40412131
R 124.72
Each
units
35mm 45mm 7mm Shaft Seal 72 NBR 902 -30°C +100°C
RS stock no. 689-675
BrandRS PRO
R 70.39
1 Bag of 50
Bag(s)
9/16in 3/4in 3/32in O-Ring Seal Nitrile Rubber -30°C +120°C
RS stock no. 128-934
BrandRS PRO
R 89.87
1 Bag of 50
Bag(s)
24.5mm 30.5mm 3mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS stock no. 255-3281
Mfr. Part No.722660
BrandPaulstra
R 138.46
1 Bag of 2
Bag(s)
12mm 22mm 7mm Shaft Seal Nitrile Rubber -30°C +110°C
RS stock no. 211-8973
BrandRS PRO
R 30.768
Each (In a Pack of 5)
units
20mm 40mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS stock no. 828-9153
Mfr. Part No.40413812
R 165.40
Each
units
65mm 80mm 8mm Shaft Seal 72 NBR 902 -40°C +100°C
RS stock no. 211-9011
BrandRS PRO
R 35.618
Each (In a Pack of 5)
units
25mm 47mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C