McMaster-Carr logo
    Filter by
    System of Measurement
    Cross Section Shape
    Width
    Attribute Image
    Thickness
    Material
    Color
    Hardness Rating
    Construction
    Minimum Temperature
    Performance
    Top Shape
    Maximum Temperature
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    21 Products

    Oil-Resistant Buna-N Backup Rings

    Image of Product. Bottom orientation. Backup Rings. Oil-Resistant Buna-N Backup Rings.
    Image of Attribute. Front orientation. CrossSection view. Contains Annotated. Oil-Resistant Buna-N Backup Rings.
    Made of Buna-N, these backup rings resist grease, petroleum fluids, and motor oil. Use them to extend the life of your O-rings and improve their performance in high-pressure applications.
    For Dash
    No.
    Thk.
    ID
    OD
    Hardness
    Temp. Range,
    ° F
    Color
    Pkg.
    Qty.
    Pkg.
    0.183" Wide
    322
    0.076"1.263"1.629"Durometer 90A (Hard)-40 to 250Black500000000000000
    323
    0.076"1.316"1.682"Durometer 90A (Hard)-40 to 250Black50000000000000
    325
    0.076"1.513"1.879"Durometer 90A (Hard)-40 to 250Black50000000000000
    326
    0.076"1.638"2.004"Durometer 90A (Hard)-40 to 250Black500000000000000
    329
    0.076"2.013"2.379"Durometer 90A (Hard)-40 to 250Black500000000000000
    330
    0.076"2.138"2.504"Durometer 90A (Hard)-40 to 250Black500000000000000
    333
    0.076"2.518"2.884"Durometer 90A (Hard)-40 to 250Black500000000000000
    334
    0.076"2.643"3.009"Durometer 90A (Hard)-40 to 250Black500000000000000
    337
    0.076"3.018"3.384"Durometer 90A (Hard)-40 to 250Black250000000000000
    338
    0.076"3.143"3.509"Durometer 90A (Hard)-40 to 250Black250000000000000
    339
    0.076"3.273"3.639"Durometer 90A (Hard)-40 to 250Black250000000000000
    340
    0.076"3.398"3.764"Durometer 90A (Hard)-40 to 250Black250000000000000
    341
    0.076"3.523"3.889"Durometer 90A (Hard)-40 to 250Black25000000000000
    342
    0.076"3.648"4.014"Durometer 90A (Hard)-40 to 250Black250000000000000
    343
    0.076"3.773"4.139"Durometer 90A (Hard)-40 to 250Black250000000000000
    344
    0.076"3.898"4.264"Durometer 90A (Hard)-40 to 250Black250000000000000
    345
    0.076"4.028"4.394"Durometer 90A (Hard)-40 to 250Black250000000000000
    346
    0.076"4.153"4.519"Durometer 90A (Hard)-40 to 250Black250000000000000
    349
    0.076"4.528"4.894"Durometer 90A (Hard)-40 to 250Black10000000000000
    351
    0.076"4.778"5.144"Durometer 90A (Hard)-40 to 250Black1000000000000
    358
    0.076"5.653"6.019"Durometer 90A (Hard)-40 to 250Black100000000000000
     
    back to top