Gaskets & O-Rings | Rubber O Ring Seals | RS
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    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 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. You can see more in our a href="https://uk.rs-online.com/web/generalDisplay.html?id=ideas-and-advice/o-rings-and-seals-guide"Gaskets and O-rings guide/a.

    h3How do gaskets and O-rings work?/h3

    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.

    h3Types of gaskets and O-rings/h3

    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.

    4205 Products showing for Gaskets & O-Rings

    RS PRO
    45mm
    55.6mm
    O-Ring
    Nitrile
    5.3mm
    -30°C
    +90°C
    -
    -
    RS PRO
    110mm
    126mm
    O-Ring
    Nitrile
    8mm
    -30°C
    +90°C
    -
    -
    RS PRO
    105mm
    115mm
    O-Ring
    EPDM
    5mm
    -30°C
    +120°C
    -
    -
    RS PRO
    110mm
    113mm
    O-Ring
    Nitrile Rubber
    1.5mm
    -30°C
    +90°C
    -
    -
    RS PRO
    3.5mm
    5.3mm
    O-Ring
    Nitrile
    0.9mm
    -30°C
    +90°C
    -
    -
    RS PRO
    5mm
    9mm
    O-Ring
    EPDM
    2mm
    -30°C
    +120°C
    -
    -
    RS PRO
    3/8in
    9/16in
    O-Ring Seal
    Nitrile Rubber
    3/32in
    -30°C
    +120°C
    -
    -
    RS PRO
    80mm
    88mm
    O-Ring
    FKM
    4mm
    -15°C
    +200°C
    -
    -
    RS PRO
    74.4mm
    80.6mm
    O-Ring
    Nitrile
    3.1mm
    -30°C
    +90°C
    -
    -
    RS PRO
    28mm
    34mm
    O-Ring
    FKM
    3mm
    -15°C
    +200°C
    -
    -
    RS PRO
    8mm
    13mm
    O-Ring
    Nitrile Rubber
    2.5mm
    -30°C
    +90°C
    -
    -
    RS PRO
    16mm
    20mm
    O-Ring
    FKM
    2mm
    -15°C
    +200°C
    -
    -
    RS PRO
    2.5mm
    3.5mm
    O-Ring
    Nitrile Rubber
    0.5mm
    -30°C
    +90°C
    -
    -
    RS PRO
    106mm
    120mm
    O-Ring
    Nitrile
    7mm
    -30°C
    +90°C
    -
    -
    RS PRO
    52mm
    56mm
    O-Ring
    Nitrile Rubber
    2mm
    -30°C
    +90°C
    -
    -
    RS PRO
    8mm
    11.5mm
    O-Ring
    Nitrile Rubber
    1.75mm
    -30°C
    +90°C
    -
    -
    RS PRO
    5/16in
    7/16in
    O-Ring Seal
    Nitrile Rubber
    1/16in
    -30°C
    +120°C
    -
    -
    RS PRO
    1/4in
    3/8in
    O-Ring Seal
    Nitrile Rubber
    1/16in
    -30°C
    +120°C
    -
    -
    RS PRO
    78mm
    84mm
    O-Ring
    Nitrile Rubber
    3mm
    -30°C
    +90°C
    -
    -
    RS PRO
    40.94mm
    46.18mm
    O-Ring
    FKM
    2.62mm
    -15°C
    +200°C
    -
    -
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