2-309 AS568 Oring Cad 2-309 AS568 Oring
2-309 AS568
AS568-309 Neoprene 70 Duro Black O-Ring for 7/16 ID X 3/16 CS

Neoprene O-Rings 70 Duro Black CR700100-309

$ 0.4738 per Each
Minimum Order Quantity (MOQ): 64
Ships within 14 days
Qty Price
64 - 73 $0.4738
74 - 160 $0.3553
159 - 316 $0.3080
317 - 633 $0.2606
634 - 1266 $0.2132
1267+ $0.1895

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Product Details
Part Number CR700100-309
Material Neoprene
Temperature Range -40°F to 250°F
Cross Sectional Shape Round
Hardness 70
Color Black
Dash 309
Fractional
  • ID: 7/16
  • CS: 3/16
  • OD: 13/16
Actual (Inch)
  • ID: 0.412 ± 0.010
  • CS: 0.210 ± 0.005
  • OD: 0.831
Actual (Metric)
  • ID: 10.46 ± 0.25
  • CS: 5.33 ± 0.13
  • OD: 21.12

Neoprene (Chloroprene) O-rings are made from a synthetic rubber compound produced by the polymerization of chloroprene. These seals are known for their excellent balance of mechanical properties and resistance to environmental degradation. Neoprene o-rings provide superior resistance to sun, ozone, and weather, along with good tearing resistance and moderate resistance to oils and chemicals, making them ideal for general-purpose industrial and marine applications.

Neoprene Recommended Uses

Seals and gaskets, marine applications, refrigeration systems (Freon/refrigerants), HVAC equipment, outdoor weathering applications, moderate oil and chemical exposure, and general industrial sealing.

Neoprene Not Recommended

Strong oxidizing acids, ketones, esters, chlorinated hydrocarbons, aromatic hydrocarbons (like benzene), and nitro hydrocarbons.

Neoprene Limitations

  • Limited resistance to strong chemicals and oxidizing agents.
  • Prone to degradation when exposed to polar solvents and certain fuels.
  • Inferior high-temperature performance compared to fluorocarbon elastomers.
  • Can absorb moisture over extended periods in specific underwater applications.
Neoprene Usable Temperature Range

-40 to 250°F (-40 to 121°C)

Neoprene Also Known As

CR, Chloroprene Rubber, Baypren®, Neoprene Elastomer.