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. 475-316
Mfr. Part No.ORJ-12
BrandNylofix
R 5.098
Each (In a Pack of 100)
units
11.5mm 14.5mm 1.5mm O-Ring Seal Nitrile Rubber -30°C +150°C
RS stock no. 128-906
BrandRS PRO
R 70.22
1 Bag of 50
Bag(s)
11.6mm 16.4mm 2.4mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS stock no. 295-2127
Mfr. Part No.722518
BrandPaulstra
R 171.44
1 Bag of 2
Bag(s)
32mm 50mm 8mm Shaft Seal Nitrile Rubber -30°C +110°C
RS stock no. 689-495
BrandRS PRO
R 253.44
1 Bag of 50
Bag(s)
21.54mm 28.58mm 2.5mm Bonded Seal Nitrile Rubber -10°C +80°C
RS stock no. 527-9807
BrandRS PRO
R 116.91
1 Bag of 50
Bag(s)
9.25mm 1/2in 1.78mm O-Ring Seal Silicone -60°C +200°C
RS stock no. 527-9970
BrandRS PRO
R 279.46
1 Bag of 50
Bag(s)
29.75mm 1-7/16in 3.53mm O-Ring Seal Silicone -60°C +200°C
RS stock no. 295-2212
Mfr. Part No.722501
BrandPaulstra
R 185.61
1 Bag of 2
Bag(s)
40mm 58mm 10mm Shaft Seal Nitrile Rubber -30°C +110°C
RS stock no. 211-8721
BrandRS PRO
R 24.462
Each (In a Pack of 5)
units
6mm 16mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS stock no. 129-072
BrandRS PRO
R 202.95
1 Bag of 50
Bag(s)
12.37mm 17.46mm 2.62mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS stock no. 255-3196
Mfr. Part No.722034
BrandPaulstra
R 325.16
1 Bag of 2
Bag(s)
5mm 15mm 6mm Shaft Seal Nitrile Rubber -30°C +110°C
RS stock no. 521-5752
BrandRS PRO
R 724.99
Each
units
- 25.4mm - O-Ring Seal Carbon Steel, Stainless Steel - -
RS stock no. 828-9258
Mfr. Part No.40412184
R 112.16
Each
units
20mm 35mm 6mm Shaft Seal 72 NBR 902 -40°C +100°C
RS stock no. 689-574
BrandRS PRO
R 45.05
1 Bag of 50
Bag(s)
1/8in 1/4in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS stock no. 689-631
BrandRS PRO
R 55.09
1 Bag of 50
Bag(s)
3/8in 1/2in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS stock no. 256-0352
Mfr. Part No.R900357573
R 438.46
Each
units
- - - - - - -
RS stock no. 211-9156
BrandRS PRO
R 42.612
Each (In a Pack of 5)
units
38mm 62mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS stock no. 828-9135
Mfr. Part No.40413913
R 112.53
Each
units
8mm 22mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS stock no. 749-682
BrandRS PRO
R 23.075
Each (In a Pack of 4)
units
40mm 53 → 58mm 9mm V-Ring Seal Nitrile Rubber -40°C +100°C
RS stock no. 129-000
BrandRS PRO
R 99.75
1 Bag of 50
Bag(s)
4.47mm 7.93mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS stock no. 689-596
BrandRS PRO
R 45.05
1 Bag of 50
Bag(s)
3/16in 5/16in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C