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326 Contoured Backup Ring, 1-5/8ID x 2OD, 90 Duro, Round, Black

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326 Contoured Backup Ring, 1-5/8ID x 2OD, 90 Duro, Round, Black

Item #: WBB1371485

Sold By: globalindustrial.com

Usually ships in 3 to 6 days Estimated lead times do not include weekends or holidays. Transit time is determined by shipping method and destination. Orders requiring credit information might take additional time.

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Minimum Quantity: 48 ($7.68)

Price: $0.16

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Product Information
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Nitrile rubber, also known as NBR or Buna N, is one of the most commonly used sealing elastomers due to its resistance to petroleum-based fuels and lubricants and its relatively low price. Nitrile elastomers are copolymers of acrylonitrile and butadiene. There are a number of common variations of nitrile compounds.
  • Acrylonitrile Content: The acrylonitrile (ACN) content of the polymer chains can be varied from 18% to 50%. Lower ACN content gives better low-temperature properties but poorer fuels and polar lubricants. Higher ACN content gives poorer low-temperature properties but improved fuels and polar lubricants resistance. Standard NBRs typically have 34% ACN content.
  • Cure system: Sulfur-cured
  • Standard Nitriles are usually sulfur-cured. Sulfur-cured compounds offer better low-temperature properties but are more prone to hardening with high temperatures.
  • Peroxide-cured nitriles have better heat resistance and lower compression sets but are more expensive and more difficult to process.
Temperature Range:
  • Standard Low Temp: -40°C (-40°F)
  • Standard High Temp: 100°C (212°F)

Product Specifications

    • ACTUAL OUTSIDE DIAMETER INCHES2.004
    • NOMINAL OUTSIDE DIAMETER INCHES2
    • DUROMETER90
    • ACTUAL CROSS SECTION INCHES0.183
    • NOMINAL INSIDE DIAMETER INCHES1-5/8
    • ACTUAL INSIDE DIAMETER MILLIMETERS41.61
    • PACKAGE QUANTITY48
    • BRANDGlobal O-Ring
    • COLOR FINISHBlack
    • SHAPERound
    • TEMPERATURE RANGE-40°F to +212°F
    • ACTUAL INSIDE DIAMETER INCHES1.638
    • MANUFACTURERS PART NUMBERN8-90-326
    • DESCRIPTIONNitrile Back-Up Rings
    • CONSTRUCTIONNitrile
    • ACTUAL CROSS SECTION MILLIMETERS4.65
    • NOMINAL CROSS SECTION INCHES3/16
    • UNIVERSAL DASH NUMBER326

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