2-208 AS568 Oring Cad 2-208 AS568 Oring
2-208 AS568
AS568-208 FKM 75 Duro Brown O-Ring for 5/8 ID X 1/8 CS

FKM O-Rings 75 Duro Brown V750200-208

$ 0.436 per Each
Minimum Order Quantity (MOQ): 69
Ships within 7 days
Qty Price
69 - 80 $0.4360
81 - 172 $0.3270
173 - 344 $0.2616
345 - 688 $0.1962
689+ $0.1602

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Product Details
Material FKM
Temperature Range -15°F to 400°F
Cross Sectional Shape Round
Hardness 75
Dash 208
Fractional
  • ID: 5/8
  • CS: 1/8
  • OD: 7/8
Actual (Inch)
  • ID: 0.609 ± 0.009
  • CS: 0.139 ± 0.004
  • OD: 0.887
Actual (Metric)
  • ID: 15.47 ± 0.23
  • CS: 3.53 ± 0.10
  • OD: 22.530

FKM (Fluorocarbon) O-rings are made from a synthetic rubber compound primarily consisting of vinylidene fluoride (VDF) and hexafluoropropylene (HFP). These seals are known for their excellent resistance to high temperatures, chemicals, oils, and fuels. FKM square-profile rings provide superior mechanical strength, excellent resistance to aging, and high resistance to aggressive media, making them ideal for high-performance applications across automotive, industrial, and aerospace sectors.

FKM Recommended Uses

Seals and gaskets, chemical processing, automotive fuel systems, hydraulic systems, aerospace applications, high-temperature applications, oil and gas industry, and extreme environment applications.

FKM Not Recommended

Ketones, esters, amines, low molecular weight acids, and some high-temperature steam systems.

FKM Limitations

  • Not suitable for low-temperature environments.
  • Limited performance in swelling from contact with certain fuels and solvents.
  • Not recommended for applications involving polar solvents.
  • Not ideal for applications that involve high shear or abrasion conditions.
FKM Usable Temperature Range

-20 to 450°F (-29 to 232°C)

FKM Also Known As

FKM, Viton®, Fluorel®, Fluroelastomer, Fluorocarbon Elastomer.