McMaster-Carr logo
    Filter by
    System of Measurement
    For Sealing
    For Cylinder Type
    For Shaft Motion
    Material
    Industrial Info Compare
    Hardness Rating
    Maximum Temperature
    Maximum Speed
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    75 Products

    Rod Seals

    Image of Product. Side 1. Front orientation. Rod Seals.
    Image of Product. Side 2. Back orientation. Rod Seals.
    Image of Product. Profile. Front orientation. CrossSection view. Rod Seals.
    Image of Attribute. Front orientation. Contains Annotated.

    Side 1

    Side 2

    Profile

    These seals have a beveled lip that optimizes contact against the rod, while a secondary lip keeps the seal stable.
    Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
    For
    Groove
    For Rod
    Dia.
    Dia.
    Wd.
    Max. Speed,
    ft/sec
    Max. Pressure,
    psi
    Temp. Range,
    ° F
    Hardness
    Color
    Each
    Polyurethane Rubber
    1/4"0.500"0.206"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    3/8"0.625"0.206"1.65,000-65 to 275Durometer 90A (Hard)Beige00000000000
    1/2"0.750"0.206"1.65,000-65 to 275Durometer 90A (Hard)Beige00000000000
    1/2"0.750"0.275"1.65,000-65 to 275Durometer 90A (Hard)Beige00000000000
    5/8"0.875"0.206"1.65,000-65 to 275Durometer 90A (Hard)Beige00000000000
    5/8"0.875"0.275"1.65,000-65 to 275Durometer 90A (Hard)Beige00000000000
    3/4"1.000"0.275"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    7/8"1.125"0.275"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    1"1.250"0.206"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    1"1.250"0.275"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    1 1/8"1.375"0.275"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    1 1/4"1.500"0.206"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    1 1/4"1.500"0.275"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    1 1/2"1.750"0.275"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    1 1/2"1.875"0.413"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    1 1/2"2.000"0.413"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    1 5/8"2.000"0.413"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    1 3/4"2.125"0.275"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    1 3/4"2.125"0.413"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    1 3/4"2.250"0.413"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    1 7/8"2.250"0.413"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    2"2.375"0.275"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    2"2.375"0.413"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    2"2.500"0.413"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    2 1/4"2.625"0.343"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    2 1/4"2.750"0.413"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    2 1/2"2.875"0.413"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    2 1/2"3.000"0.413"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    2 3/4"3.250"0.413"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
    3"3.500"0.413"1.65,000-65 to 275Durometer 90A (Hard)Beige000000000000
     

    High-Pressure Hydraulic Cylinder Buffering Seals

    Image of Product. Side 1. Front orientation. Buffering Seals. High-Pressure Hydraulic Cylinder Buffering Seals.
    Image of Product. Side 2. Back orientation. Buffering Seals. High-Pressure Hydraulic Cylinder Buffering Seals.
    Image of Product. Profile. Front orientation. CrossSection view. Buffering Seals. High-Pressure Hydraulic Cylinder Buffering Seals.
    Image of Attribute. Front orientation. Contains Annotated. High-Pressure Hydraulic Cylinder Buffering Seals.

    Side 1

    Side 2

    Profile

    Rated for pressure up to 10,000 psi, these seals withstand the highest pressure of our buffering seals. Use in tandem with rod seals to protect the cylinder from pressure spikes and shock.
    Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
    For
    Groove
    For Rod
    Dia.
    Dia.
    Wd.
    Max. Speed,
    ft/sec
    Max. Pressure,
    psi
    Temp. Range,
    ° F
    Hardness
    Color
    Backup Ring
    Color
    Each
    Polyurethane Rubber with Nylon Backup Ring
    1/2"0.750"0.206"1.610,000-65 to 250Durometer 90A (Hard)BeigeGray000000000000
    3/4"1.125"0.206"1.610,000-65 to 250Durometer 90A (Hard)BeigeGray000000000000
    1"1.375"0.206"1.610,000-65 to 250Durometer 90A (Hard)BeigeGray000000000000
    1 1/8"1.500"0.206"1.610,000-65 to 250Durometer 90A (Hard)BeigeGray000000000000
    1 1/4"1.625"0.206"1.610,000-65 to 250Durometer 90A (Hard)BeigeGray000000000000
    1 3/8"1.750"0.206"1.610,000-65 to 250Durometer 90A (Hard)BeigeGray000000000000
    1 1/2"2.000"0.275"1.610,000-65 to 250Durometer 90A (Hard)BeigeGray000000000000
    1 3/4"2.250"0.275"1.610,000-65 to 250Durometer 90A (Hard)BeigeGray000000000000
    1 7/8"2.375"0.275"1.610,000-65 to 250Durometer 90A (Hard)BeigeGray000000000000
    2"2.500"0.275"1.610,000-65 to 250Durometer 90A (Hard)BeigeGray000000000000
    2 1/2"3.000"0.275"1.610,000-65 to 250Durometer 90A (Hard)BeigeGray000000000000
    2 3/4"3.250"0.275"1.610,000-65 to 250Durometer 90A (Hard)BeigeGray000000000000
    3"3.500"0.275"1.610,000-65 to 250Durometer 90A (Hard)BeigeGray000000000000
     

    Cylinder-Sealing Rod Wipers

    Image of Product. Side 1. Front orientation. Rod Wipers. Cylinder-Sealing Rod Wipers.
    Image of Product. Side 2. Back orientation. Rod Wipers. Cylinder-Sealing Rod Wipers.

    Side 1

    Side 2

    Image of Attribute. Front orientation. Contains Annotated. Cylinder-Sealing Rod Wipers.
    Image of Attribute. Profile. Front orientation. CrossSection view. Contains Annotated. Cylinder-Sealing Rod Wipers.

    Profile

    These wipers seal against the cylinder to prevent contaminants from entering between the outside edge and the housing. They’re often used in vertically mounted cylinders.
    Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
    For Groove
    Seal
    For Rod
    Dia.
    Dia.
    Shoulder
    Dia.
    Wd.
    Wd.
    Overall
    Wd.
    Max. Speed,
    ft/sec
    Max.
    Pressure
    Temp. Range,
    ° F
    Hardness
    Color
    Each
    Polyurethane Rubber
    1/4"0.497"0.410"0.124"0.210"0.215"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige0000000000000
    3/8"0.622"0.535"0.124"0.210"0.215"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    1/2"0.747"0.660"0.124"0.210"0.215"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    5/8"0.872"0.785"0.124"0.210"0.215"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    3/4"1.122"0.995"0.187"0.305"0.315"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    7/8"1.247"1.120"0.187"0.305"0.315"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    1"1.372"1.245"0.187"0.305"0.315"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    1 1/8"1.497"1.370"0.187"0.305"0.315"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    1 1/4"1.622"1.495"0.187"0.305"0.315"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    1 3/8"1.747"1.620"0.187"0.305"0.315"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    1 1/2"1.872"1.745"0.187"0.305"0.315"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    1 5/8"1.997"1.870"0.187"0.305"0.315"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    1 3/4"2.122"1.995"0.187"0.305"0.315"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    1 7/8"2.247"2.120"0.187"0.305"0.315"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    2"2.497"2.327"0.249"0.395"0.415"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    2 1/4"2.747"2.577"0.249"0.395"0.415"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    2 1/2"2.997"2.827"0.249"0.395"0.415"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    2 3/4"3.247"3.077"0.249"0.395"0.415"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
    3"3.497"3.327"0.249"0.395"0.415"1.6Not Rated-65 to 275Durometer 90A (Extra Hard)Beige000000000000
     

    Sealing Washers

    Prevent leaks while distributing weight evenly under nuts and screws. These washers compress as you tighten to keep air and fluid in, and dust and contaminants out. Use them anywhere you need a tight seal, such as protecting electronics from moisture or keeping lubricants contained in machinery.
    Rubber
    Image of Product. Front orientation. Sealing Washers. Rubber.
    Resist leaks better than metal sealing washers, but are more susceptible to wear and tear. Reuse these washers a handful of times, as long as the material isn't damaged.
    Weather- and Chemical-Resistant Santoprene—Not only will these washers withstand sunlight, rain, and ozone, they also won't degrade when exposed to acids and other harsh chemicals. They are more wear resistant than EPDM washers to stand up to repeated use.
    Temp.
    Range, ° F
    For Screw
    Size
    ID
    OD
    Thk.
    Min.
    Max.
    Color
    Pkg.
    Qty.
    Pkg.
    Weather- and Chemical-Resistant Santoprene
    No. 6
    		0.120"0.250"0.068" to 0.088"-40270Beige50000000000000000
    No. 6
    		0.120"0.375"0.068" to 0.088"-40270Beige5000000000000000
    No. 8
    		0.150"0.312"0.068" to 0.088"-40270Beige5000000000000000
    No. 10
    		0.170"0.500"0.068" to 0.088"-40270Beige5000000000000000
    No. 12
    		0.195"0.562"0.068" to 0.088"-40270Beige5000000000000000
    1/4"
    		0.230"0.500"0.068" to 0.088"-40270Beige500000000000000
    1/4"
    		0.230"0.500"0.081" to 0.105"-40270Beige5000000000000000
    3/8"
    		0.355"0.625"0.068" to 0.088"-40270Beige250000000000000
    3/8"
    		0.355"0.625"0.081" to 0.105"-40270Beige2500000000000000
    3/8"
    		0.355"0.812"0.068" to 0.088"-40270Beige100000000000000
    1/2"
    		0.490"1.062"0.068" to 0.088"-40270Beige1000000000000000
    1/2"
    		0.490"1.062"0.081" to 0.105"-40270Beige1000000000000000
    3/4"
    		0.740"1.500"0.068" to 0.088"-40270Beige50000000000000
     
    back to top