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 196-5741
BrandRS PRO
HK$51.75
毎包:5 個
Bag(s)
50mm 54mm 2mm O-Ring FKM -15°C +200°C
RS庫存編號 204-0998
製造零件編號123800
HK$23.29
毎包:10 個
Bag(s)
23mm 30.2mm 3.6mm O-Ring Nitrile Rubber -30°C +100°C
RS庫存編號 196-5175
BrandRS PRO
HK$57.16
毎包:5 個
Bag(s)
115mm 125mm 5mm 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 196-5723
BrandRS PRO
HK$64.11
毎包:10 個
Bag(s)
28mm 32mm 2mm O-Ring FKM -15°C +200°C
RS庫存編號 196-5373
BrandRS PRO
HK$51.93
毎包:50 個
Bag(s)
1.98mm 3.66mm 0.84mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-4809
BrandRS PRO
HK$84.61
毎包:25 個
Bag(s)
75.79mm 82.85mm 3.53mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5538
BrandRS PRO
HK$28.73
毎包:50 個
Bag(s)
3.1mm 6.3mm 1.6mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5979
BrandRS PRO
HK$127.03
毎包:10 個
Bag(s)
71.12mm 76.36mm 2.62mm O-Ring FKM -15°C +200°C
RS庫存編號 196-5553
BrandRS PRO
HK$33.28
毎包:50 個
Bag(s)
13.1mm 16.3mm 1.6mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5785
BrandRS PRO
HK$100.33
毎包:25 個
Bag(s)
18mm 23mm 2.5mm O-Ring FKM -15°C +200°C
RS庫存編號 196-5719
BrandRS PRO
HK$97.77
毎包:25 個
Bag(s)
24mm 28mm 2mm O-Ring FKM -15°C +200°C
RS庫存編號 196-5735
BrandRS PRO
HK$68.51
毎包:10 個
Bag(s)
38mm 42mm 2mm O-Ring FKM -15°C +200°C
RS庫存編號 196-5870
BrandRS PRO
HK$127.40
毎包:5 個
Bag(s)
92mm 98mm 3mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5639
BrandRS PRO
HK$93.75
毎包:25 個
Bag(s)
23mm 25mm 1mm O-Ring FKM -15°C +200°C
RS庫存編號 196-5460
BrandRS PRO
HK$25.32
毎包:50 個
Bag(s)
2.5mm 5.5mm 1.5mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-5379
BrandRS PRO
HK$25.11
毎包:50 個
Bag(s)
1.5mm 3.5mm 1mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-4873
BrandRS PRO
HK$25.32
毎包:50 個
Bag(s)
15mm 19mm 2mm O-Ring Nitrile Rubber -30°C +90°C
RS庫存編號 196-6015
BrandRS PRO
HK$81.14
毎包:5 個
Bag(s)
53.57mm 60.63mm 3.53mm O-Ring FKM -15°C +200°C
RS庫存編號 196-5056
BrandRS PRO
HK$32.45
毎包:50 個
Bag(s)
47mm 53mm 3mm O-Ring Nitrile Rubber -30°C +90°C