Gaskets & O-Rings

Gaskets and O-rings are used to join two parts of a machine, engine or another often mechanical assembly by filling the space between both parts, creating a filled and sealed space in between. This seal prevents particle, vapour and fluid ingress or leakage to protect and maintain the joint or pressure whilst keeps debris out, ensuring proper function and safety. Gaskets and O-rings are used in various fields and industries including automotive, aerospace and general engineering.

How do gaskets and O-rings work?

A gasket or O-ring is seated between two parts, often 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 gaskets and O-rings

Gaskets 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 kits for general maintenance or when looking after a range of sealed part to ensure the correct size is available.

Gaskets and O-rings are typically made of elastomers like nitrile rubber and silicone, but they also come in plastics and other materials. This variety of material allows for specific gaskets and O-rings to be used to ensure the best fitting and most reliable seal.

Sizes vary between 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 gaskets and o-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. 689-574
BrandRS PRO
MYR25.55
1 Bag of 50
Bag(s)
1/8in 1/4in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-596
BrandRS PRO
MYR24.12
1 Bag of 50
Bag(s)
3/16in 5/16in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-625
BrandRS PRO
MYR18.92
1 Bag of 50
Bag(s)
5/16in 7/16in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-669
BrandRS PRO
MYR23.69
1 Bag of 50
Bag(s)
1/2in 11/16in 3/32in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 211-8737
BrandRS PRO
MYR9.712
Each (In a Pack of 5)
units
6mm 22mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 128-883
BrandRS PRO
MYR22.08
1 Bag of 50
Bag(s)
7.6mm 12.4mm 2.4mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 128-811
BrandRS PRO
MYR22.08
1 Bag of 50
Bag(s)
6.1mm 9.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-619
BrandRS PRO
MYR17.97
1 Bag of 50
Bag(s)
1/4in 3/8in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-631
BrandRS PRO
MYR21.12
1 Bag of 50
Bag(s)
3/8in 1/2in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 211-8715
BrandRS PRO
MYR8.992
Each (In a Pack of 5)
units
5mm 16mm 6mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 689-653
BrandRS PRO
MYR23.69
1 Bag of 50
Bag(s)
7/16in 5/8in 3/32in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-681
BrandRS PRO
MYR26.99
1 Bag of 50
Bag(s)
5/8in 13/16in 3/32in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-833
BrandRS PRO
MYR88.83
1 Bag of 50
Bag(s)
1 1/2in 1 3/4in 1/8in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 128-861
BrandRS PRO
MYR22.08
1 Bag of 50
Bag(s)
5.6mm 10.4mm 2.4mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-580
BrandRS PRO
MYR17.38
1 Bag of 50
Bag(s)
5/32in 9/32in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 196-5998
BrandRS PRO
MYR34.42
1 Bag of 10
Bag(s)
20.22mm 27.28mm 3.53mm O-Ring FKM -15°C +200°C
RS Stock No. 196-4906
BrandRS PRO
MYR38.24
1 Bag of 50
Bag(s)
42mm 46mm 2mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5498
BrandRS PRO
MYR14.15
1 Bag of 50
Bag(s)
24.5mm 27.5mm 1.5mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-6055
BrandRS PRO
MYR84.89
1 Bag of 5
Bag(s)
46.99mm 57.65mm 5.33mm O-Ring FKM -15°C +200°C
RS Stock No. 196-5390
BrandRS PRO
MYR16.88
1 Bag of 50
Bag(s)
4.5mm 6.5mm 1mm O-Ring Nitrile Rubber -30°C +90°C