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 CETOP Mounting
RS Stock No. 245-9612
BrandRS PRO
$226.58
1 Kit
Kit(s)
- - - Metric O-Ring Splicing Kit Viton® - - -
RS Stock No. 521-5752
BrandRS PRO
$48.77
Each
units
- 25.4mm - O-Ring Seal Carbon Steel, Stainless Steel - - -
RS Stock No. 689-574
BrandRS PRO
$5.19
1 Bag of 50
Bag(s)
1/8in 1/4in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C -
RS Stock No. 689-619
BrandRS PRO
$5.39
1 Bag of 50
Bag(s)
1/4in 3/8in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C -
RS Stock No. 129-022
BrandRS PRO
$13.01
1 Bag of 50
Bag(s)
6.07mm 9.52mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C -
RS Stock No. 129-038
BrandRS PRO
$13.36
1 Bag of 50
Bag(s)
7.65mm 11.11mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C -
RS Stock No. 129-044
BrandRS PRO
$14.69
1 Bag of 50
Bag(s)
9.25mm 12.7mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C -
RS Stock No. 527-9784
BrandRS PRO
$14.06
1 Bag of 50
Bag(s)
6.07mm 3/8in 1.78mm O-Ring Seal Silicone -60°C +200°C -
RS Stock No. 256-0352
Mfr. Part No.R900357573
$33.31
Each
units
- - - - - - - CETOP 3
RS Stock No. 689-596
BrandRS PRO
$5.19
1 Bag of 50
Bag(s)
3/16in 5/16in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C -
RS Stock No. 211-8715
BrandRS PRO
$3.416
Each (In a Pack of 5)
units
5mm 16mm 6mm Shaft Seal Nitrile Rubber -40°C +100°C -
RS Stock No. 689-502
BrandRS PRO
$25.81
1 Bag of 50
Bag(s)
27.05mm 34.93mm 2.5mm Bonded Seal Nitrile Rubber -10°C +80°C -
RS Stock No. 128-990
BrandRS PRO
$12.72
1 Bag of 50
Bag(s)
3.68mm 7.14mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C -
RS Stock No. 128-849
BrandRS PRO
$7.29
1 Bag of 50
Bag(s)
12.1mm 15.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C -
RS Stock No. 475-255
Mfr. Part No.ORJ-23
BrandNylofix
$1.604
Each (In a Pack of 50)
units
22mm 26mm 2mm O-Ring Seal Nitrile Rubber -30°C +150°C -
RS Stock No. 749-610
BrandRS PRO
$0.728
Each (In a Pack of 4)
units
14mm 21.5 → 23.5mm 5.5mm V-Ring Seal Nitrile Rubber -40°C +100°C -
RS Stock No. 129-117
BrandRS PRO
$25.16
1 Bag of 50
Bag(s)
18.72mm 23.81mm 2.62mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C -
RS Stock No. 308-0992
Mfr. Part No.SP-121903/SEAL
BrandSKF
$11.26
Each
units
12mm 19mm 3mm Shaft Seal Nitrile Rubber -40°C +80°C -
RS Stock No. 527-9942
BrandRS PRO
$25.48
1 Bag of 50
Bag(s)
25mm 1-1/4in 3.53mm O-Ring Seal Silicone -60°C +200°C -
RS Stock No. 828-9141
Mfr. Part No.40413732
$27.09
Each
units
60mm 80mm 10mm Shaft Seal 72 NBR 902 -40°C +100°C -
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