2-401 AS568 Oring Cad 2-401 AS568 Oring
2-401 AS568
AS568-401 FKM 90 Duro Black O-Ring for 1-1/2 ID X 1/4 CS

FKM O-Rings 90 Duro Black V900100-401

$ 4.26 per Each
Minimum Order Quantity (MOQ): 8
Ships within 14 days
Qty Price
8 - 8 $4.2600
9 - 17 $3.1950
18 - 35 $2.5560
36 - 70 $1.9170
71+ $1.6500

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Product Details
Material FKM
Temperature Range -15°F to 400°F
Cross Sectional Shape Round
Hardness 90
Dash 401
Fractional
  • ID: 1-1/2
  • CS: 1/4
  • OD: 2
Actual (Inch)
  • ID: 1.475 ± 0.015
  • CS: 0.275 ± 0.006
  • OD: 2.025
Actual (Metric)
  • ID: 37.47 ± 0.38
  • CS: 6.99 ± 0.15
  • OD: 51.450

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.