x-ring x-ring cross section X-ring features
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AS568-114 Buna-N 70 Duro Black X-Ring for 5/8 ID X 3/32 CS

Buna-N X-Rings 70 Duro Black BN700100-X-114

$ 0.2929 per Each
Minimum Order Quantity (MOQ): 103
Ships within 14 days
Qty Price
103 - 119 $0.2929
120 - 259 $0.2197
257 - 512 $0.1904
513 - 1024 $0.1611
1025+ $0.1465

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Product Details
Material Buna-N
Cross Sectional Shape X
Hardness 70
Dash 114
Fractional
  • ID: 5/8
  • CS: 3/32
  • OD: 13/16
Actual (Inch)
  • ID: 0.612 ± 0.009
  • CS: 0.103 ± 0.003
  • OD: 0.818
Actual (Metric)
  • ID: 15.54 ± 0.23
  • CS: 2.62 ± 0.08
  • OD: 20.780

Buna-N (Nitrile) X-rings, also known as Quad-rings, are a type of sealing element designed to provide superior sealing performance in dynamic applications. These rings have a unique square cross-section with four contact points, offering better sealing efficiency and lower friction compared to traditional O-rings. Made from a synthetic rubber copolymer of acrylonitrile (ACN) and butadiene, Buna-N X-rings offer excellent resistance to oils, fuels, and a variety of chemicals, making them ideal for a wide range of industrial, automotive, and aerospace applications.

Buna-N X-Ring Recommended Uses

Seals and gaskets in hydraulic systems, automotive fuel systems, industrial machinery, high-pressure applications, dynamic sealing applications, and rotary sealing applications.

Buna-N X-Ring Not Recommended

Brake fluid, ozone, UV exposure, phosphate esters, chlorinated hydrocarbons, aromatic hydrocarbons, ketones, strong acids, atmospheric aging.

Buna-N X-Ring Limitations

  • Not suitable for ozone, sunlight, or weathering exposure.
  • Limited performance in high-temperature environments.
  • Not ideal for strong acids and alkalis.
  • Not recommended for applications requiring low compression set.
Buna-N X-Ring Usable Temperature Range

-30 to 250°F (-34 to 121°C)

Buna-N X-Ring Also Known As

Buna-N X-Ring, Quad-Ring, Nitrile X-Ring, NBR X-Ring, Nitrile Butadiene Rubber X-Ring.