2-168 AS568 Oring Cad 2-168 AS568 Oring
2-168 AS568
AS568-168 FKM 90 Duro Black O-Ring for 7-1/4 ID X 3/32 CS

FKM O-Rings 90 Duro Black V900100-168

$ 4.25 per Each
Minimum Order Quantity (MOQ): 8
Ships within 14 days
Qty Price
8 - 8 $4.2500
9 - 17 $3.1875
18 - 35 $2.5500
36 - 70 $1.9125
71+ $1.8100

Ordering in large quantities? Ask for a lead time quote — we'll get back to you with pricing and lead time.

Product Details
Material FKM
Temperature Range -15°F to 400°F
Cross Sectional Shape Round
Hardness 90
Dash 168
Fractional
  • ID: 7-1/4
  • CS: 3/32
  • OD: 7-7/16
Actual (Inch)
  • ID: 7.237 ± 0.045
  • CS: 0.103 ± 0.003
  • OD: 7.443
Actual (Metric)
  • ID: 183.82 ± 1.14
  • CS: 2.62 ± 0.08
  • OD: 189.060

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.