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. 128-811
BrandRS PRO
PHP258.39
1 Bag of 50
Bag(s)
6.1mm 9.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 527-9740
BrandRS PRO
PHP461.84
1 Bag of 50
Bag(s)
2.9mm 1/4in 1.78mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 527-9835
BrandRS PRO
PHP914.76
1 Bag of 50
Bag(s)
12.37mm 11/16in 2.62mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 128-861
BrandRS PRO
PHP242.86
1 Bag of 50
Bag(s)
5.6mm 10.4mm 2.4mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 829-3623
Mfr. Part No.40413840
PHP384.62
Each
units
15mm 25mm 5mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 211-8737
BrandRS PRO
PHP106.826
Each (In a Pack of 5)
units
6mm 22mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 527-9778
BrandRS PRO
PHP467.97
1 Bag of 50
Bag(s)
5.28mm 11/32in 1.78mm O-Ring Seal Silicone -60°C 200°C
RS Stock No. 255-3304
Mfr. Part No.722266
PHP729.29
1 Bag of 2
Bag(s)
15mm 24mm 7mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 877-7751
Mfr. Part No.40412194
PHP786.47
Each
units
52mm 68mm 8mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 295-2212
Mfr. Part No.722501
PHP802.44
1 Bag of 2
Bag(s)
40mm 58mm 10mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 828-9138
Mfr. Part No.40413871
PHP339.19
Each
units
22mm 35mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 828-9157
Mfr. Part No.40413835
PHP452.77
Each
units
20mm 32mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 521-5752
BrandRS PRO
PHP2,976.43
Each
units
- 25.4mm - O-Ring Seal Carbon Steel, Stainless Steel - -
RS Stock No. 527-9756
BrandRS PRO
PHP481.58
1 Bag of 50
Bag(s)
3.68mm 9/32in 1.78mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 828-9169
Mfr. Part No.40412182
PHP851.08
Each
units
45mm 72mm 8mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 689-467
BrandRS PRO
PHP717.82
1 Bag of 50
Bag(s)
10.37mm 15.88mm 2.03mm Bonded Seal Nitrile Rubber -10°C +80°C
RS Stock No. 527-9807
BrandRS PRO
PHP502.80
1 Bag of 50
Bag(s)
9.25mm 1/2in 1.78mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 129-016
BrandRS PRO
PHP434.08
1 Bag of 50
Bag(s)
5.28mm 8.73mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 528-0021
BrandRS PRO
PHP1,824.66
1 Bag of 50
Bag(s)
37.7mm 1-3/4in 3.53mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 128-827
BrandRS PRO
PHP242.86
1 Bag of 50
Bag(s)
8.1mm 11.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C