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325-3781: Solid Backup Ring
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    325-3781: Solid Backup Ring

    Part Number: 325-3781
    Brand: Cat
    Retrieving Price.....

    Solid Backup Ring

    This product contains a chemical known to the State of California to cause cancer, birth defects or other reproductive harm.

    Backup rings prevent seal extrusion in high pressure applications and help protect the life of overall sealing system from pressure surges.

    Cat® backup rings are designed in conjunction with the elastomeric seal and mating components to contribute significantly to the life and performance of the sealing system in high pressure applications. They may be solid or split depending on the application requirements.

    Backup ring dimensions are consistently held to tight tolerances to ensure they properly bridge the seal groove and the mating surface. Materials are selected for their pressure and abrasion resistance.

    Cat® sealing system uses a robust design, testing, and validation process. Buy the latest Genuine Cat® seal to protect your investment.

    Backup rings are used in high pressure static and dynamic sealing applications, such as hydraulic pumps, valves and engine systems.

    • US
    • Metric
    • Axial Thickness (mm): 3
    • Cross Section Height (mm): 4.6
    • Cross Section Width (mm): 2.5
    • Inside Diameter (mm): 372
    • Material: PTFE - Polytetrafluoroethylene
    • Material Description: PTFE provides superior performance in Air, Engine Oil, Diesel Fuel and Coolant applications, but is sensitive to installation damage and debris. It works well at very high temperatures.
    • Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image.
    • Radial Thickness (mm): 5
    • Seal/O-Ring Type: Solid
    735C, 740C 740 GC 745C, 745 740

    R1300G, R1300G II

    IT62H, IT62G, IT62G II

    950K, 962G II 950F II 950G, 962K, 950H, 962H, 962G, 950G II 960F