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. 196-5386
BrandRS PRO
PHP178.06
1 Bag of 50
Bag(s)
3mm 5mm 1mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5369
BrandRS PRO
PHP339.34
1 Bag of 50
Bag(s)
2.95mm 4.53mm 0.79mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-6045
BrandRS PRO
PHP554.29
Each
units
215.49mm 222.55mm 3.53mm O-Ring FKM -15°C +200°C
RS Stock No. 204-0991
Mfr. Part No.119151
PHP108.98
1 Bag of 10
Bag(s)
19.8mm 27mm 3.6mm O-Ring Ethylene Propylene Rubber -50°C +140°C
RS Stock No. 196-4776
BrandRS PRO
PHP317.50
1 Bag of 50
Bag(s)
23.47mm 28.71mm 2.62mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 204-0922
Mfr. Part No.104295
PHP297.00
1 Bag of 50
Bag(s)
4.9mm 8.7mm 1.9mm O-Ring Ethylene Propylene Rubber -50°C +140°C
RS Stock No. 196-5673
BrandRS PRO
PHP493.66
1 Bag of 25
Bag(s)
24mm 27mm 1.5mm O-Ring FKM -15°C +200°C
RS Stock No. 196-4755
BrandRS PRO
PHP270.81
1 Bag of 25
Bag(s)
47.35mm 50.91mm 1.78mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5725
BrandRS PRO
PHP371.20
1 Bag of 10
Bag(s)
30mm 34mm 2mm O-Ring FKM -15°C +200°C
RS Stock No. 196-5660
BrandRS PRO
PHP473.92
1 Bag of 25
Bag(s)
9.5mm 12.5mm 1.5mm O-Ring FKM -15°C +200°C
RS Stock No. 196-5509
BrandRS PRO
PHP360.70
1 Bag of 50
Bag(s)
34mm 37mm 1.5mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5802
BrandRS PRO
PHP365.33
1 Bag of 5
Bag(s)
55mm 60mm 2.5mm O-Ring FKM -15°C +200°C
RS Stock No. 689-669
BrandRS PRO
PHP334.26
1 Bag of 50
Bag(s)
1/2in 11/16in 3/32in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 196-5877
BrandRS PRO
PHP274.70
Each
units
130mm 136mm 3mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5075
BrandRS PRO
PHP158.09
1 Bag of 10
Bag(s)
78mm 84mm 3mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-5029
BrandRS PRO
PHP344.58
1 Bag of 50
Bag(s)
20mm 26mm 3mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-4849
BrandRS PRO
PHP162.19
1 Bag of 50
Bag(s)
2.5mm 6.5mm 2mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 196-4907
BrandRS PRO
PHP443.58
1 Bag of 50
Bag(s)
43mm 47mm 2mm O-Ring Nitrile Rubber -30°C +90°C
RS Stock No. 689-704
BrandRS PRO
PHP427.58
1 Bag of 50
Bag(s)
3/4in 15/16in 3/32in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 196-5033
BrandRS PRO
PHP158.09
1 Bag of 50
Bag(s)
23.5mm 29.5mm 3mm O-Ring Nitrile Rubber -30°C +90°C