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
TWD31.80
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
TWD34.80
Each (In a Pack of 4)
units
27mm 37 → 39mm 7.5mm V-Ring Seal Nitrile Rubber -40°C +100°C
RS Stock No. 245-9612
BrandRS PRO
TWD4,487.00
1 Kit
Kit(s)
- - - Metric O-Ring Splicing Kit Viton® - -
RS Stock No. 879-2845
Mfr. Part No.40411228
TWD319.00
Each
units
30mm 47mm 8mm Shaft Seal 72 NBR 902 -30°C +100°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. 689-467
BrandRS PRO
TWD407.00
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
TWD987.00
1 Bag of 50
Bag(s)
32.92mm 1-9/16in 3.53mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 128-827
BrandRS PRO
TWD139.00
1 Bag of 50
Bag(s)
8.1mm 11.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 829-3601
Mfr. Part No.40413750
TWD229.00
Each
units
15mm 26mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 829-3604
Mfr. Part No.40413263
TWD283.00
Each
units
30mm 40mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 829-3635
Mfr. Part No.40413467
TWD341.00
Each
units
30mm 52mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 877-7751
Mfr. Part No.40412194
TWD452.00
Each
units
52mm 68mm 8mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 829-3607
Mfr. Part No.40413722
TWD240.00
Each
units
60mm 75mm 8mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 877-7679
Mfr. Part No.40413728
TWD468.00
Each
units
45mm 72mm 10mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 689-631
BrandRS PRO
TWD134.00
1 Bag of 50
Bag(s)
3/8in 1/2in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 295-2329
Mfr. Part No.722236
TWD368.00
1 Bag of 2
Bag(s)
52mm 68mm 8mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 829-3639
Mfr. Part No.40413256
TWD229.00
Each
units
17mm 30mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 828-9166
Mfr. Part No.40413886
TWD663.00
Each
units
80mm 100mm 10mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 211-8737
BrandRS PRO
TWD61.40
Each (In a Pack of 5)
units
6mm 22mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C