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.

RS Components supply a great range of gaskets and seals including nitrile O-rings which have a great resistance to abrasion and can be used for various sealing applications. Our nitrile O-rings are available in both metric and imperial standard sizes. Imperial sizes are usually to BS1806 and Metric sizes are to BS4518.

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. They are 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 parts 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庫存編號 196-5910
BrandRS PRO
HK$43.40
毎包:50 個
Bag(s)
1.07mm 3.61mm 1.27mm O-Ring FKM -15°C +200°C
RS庫存編號 196-5845
BrandRS PRO
HK$111.67
毎包:10 個
Bag(s)
42mm 48mm 3mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-4906
BrandRS PRO
HK$65.47
毎包:50 個
Bag(s)
42mm 46mm 2mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-4847
BrandRS PRO
HK$29.26
毎包:50 個
Bag(s)
2mm 6mm 2mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5533
BrandRS PRO
HK$55.10
毎包:5 個
Bag(s)
125mm 128mm 1.5mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5433
BrandRS PRO
HK$25.11
毎包:50 個
Bag(s)
40mm 42mm 1mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-6017
BrandRS PRO
HK$80.46
毎包:5 個
Bag(s)
59.92mm 66.98mm 3.53mm O-Ring FKM -15°C +200°C
RS庫存編號 196-5046
BrandRS PRO
HK$25.11
毎包:50 個
Bag(s)
35.5mm 41.5mm 3mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5616
BrandRS PRO
HK$39.38
毎包:25 個
Bag(s)
3mm 5mm 1mm O-Ring FKM -15°C +200°C
RS庫存編號 196-5930
BrandRS PRO
HK$48.16
毎包:10 個
Bag(s)
29.87mm 33.43mm 1.78mm O-Ring FKM -15°C +200°C
RS庫存編號 196-5202
BrandRS PRO
HK$89.97
毎包:20 個
Bag(s)
50mm 62mm 6mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5130
BrandRS PRO
HK$25.11
毎包:20 個
Bag(s)
56mm 64mm 4mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5025
BrandRS PRO
HK$50.59
毎包:50 個
Bag(s)
17mm 23mm 3mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5537
BrandRS PRO
HK$32.33
毎包:50 個
Bag(s)
2.5mm 5.7mm 1.6mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 204-0897
製造零件編號102413
HK$37.99
毎包:50 個
Bag(s)
2.4mm 6.2mm 1.9mm O-Ring Nitrile Rubber -30°C +100°C
RS庫存編號 196-5516
BrandRS PRO
HK$25.32
毎包:50 個
Bag(s)
48mm 51mm 1.5mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5059
BrandRS PRO
HK$55.10
毎包:20 個
Bag(s)
52mm 58mm 3mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5152
BrandRS PRO
HK$33.28
毎包:50 個
Bag(s)
18mm 28mm 5mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5789
BrandRS PRO
HK$143.95
毎包:25 個
Bag(s)
22mm 27mm 2.5mm O-Ring FKM -15°C +200°C
RS庫存編號 204-0953
製造零件編號110916
HK$52.18
毎包:10 個
Bag(s)
10.5mm 15.9mm 2.7mm O-Ring Fluorocarbon Elastomer -25°C +200°C