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. 308-1046
Mfr. Part No.SP-304004/SEAL
BrandSKF
TWD306.00
Each
units
30mm 40mm 4mm Shaft Seal Nitrile Rubber -40°C +80°C
RS Stock No. 749-626
BrandRS PRO
TWD31.30
Each (In a Pack of 4)
units
18mm 27 → 29mm 7.5mm V-Ring Seal Nitrile Rubber -40°C +100°C
RS Stock No. 749-654
BrandRS PRO
TWD34.30
Each (In a Pack of 4)
units
27mm 37 → 39mm 7.5mm V-Ring Seal Nitrile Rubber -40°C +100°C
RS Stock No. 689-467
BrandRS PRO
TWD415.00
1 Bag of 50
Bag(s)
10.37mm 15.88mm 2.03mm Bonded Seal Nitrile Rubber -10°C +80°C
RS Stock No. 527-9992
BrandRS PRO
TWD969.00
1 Bag of 50
Bag(s)
32.92mm 1-9/16in 3.53mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 879-2845
Mfr. Part No.40411228
TWD314.00
Each
units
30mm 47mm 8mm Shaft Seal 72 NBR 902 -30°C +100°C
RS Stock No. 245-9612
BrandRS PRO
TWD4,424.00
1 Kit
Kit(s)
- - - Metric O-Ring Splicing Kit Viton® - -
RS Stock No. 128-827
BrandRS PRO
TWD137.00
1 Bag of 50
Bag(s)
8.1mm 11.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 295-2199
Mfr. Part No.792748
TWD423.00
1 Bag of 2
Bag(s)
40mm 56mm 8mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 196-5055
BrandRS PRO
TWD358.00
1 Bag of 50
Bag(s)
45mm 51mm 3mm O-Ring Seal Nitrile Rubber -30°C +90°C
New
RS Stock No. 196-5968
BrandRS PRO
TWD350.00
1 Bag of 10
Bag(s)
47.29mm 52.53mm 2.62mm O-Ring Seal FKM -15°C +200°C
RS Stock No. 900-3162
Mfr. Part No.8112801
BrandAltech
TWD5.00
Each (In a Pack of 50)
units
7mm 9.4mm - - NBR 70 -30°C +120°C
New
RS Stock No. 196-5922
BrandRS PRO
TWD345.00
1 Bag of 50
Bag(s)
15.6mm 19.16mm 1.78mm O-Ring Seal FKM -15°C +200°C
RS Stock No. 196-4982
BrandRS PRO
TWD174.00
1 Bag of 50
Bag(s)
24mm 29mm 2.5mm O-Ring Seal Nitrile Rubber -30°C +90°C
RS Stock No. 196-5833
BrandRS PRO
TWD261.00
1 Bag of 10
Bag(s)
29mm 35mm 3mm O-Ring Seal Nitrile Rubber -30°C +90°C
RS Stock No. 527-9762
BrandRS PRO
TWD256.00
1 Bag of 50
Bag(s)
4.47mm 5/16in 1.78mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 196-5056
BrandRS PRO
TWD117.00
1 Bag of 50
Bag(s)
47mm 53mm 3mm O-Ring Seal Nitrile Rubber -30°C +90°C
RS Stock No. 196-4995
BrandRS PRO
TWD91.00
1 Bag of 20
Bag(s)
72mm 77mm 2.5mm O-Ring Seal Nitrile Rubber -30°C +90°C
RS Stock No. 196-5614
BrandRS PRO
TWD126.00
1 Bag of 25
Bag(s)
2mm 4mm 1mm O-Ring Seal FKM -15°C +200°C
RS Stock No. 295-2256
Mfr. Part No.722682
TWD180.00
1 Bag of 2
Bag(s)
42mm 60mm 10mm Shaft Seal Nitrile Rubber -30°C +110°C