2-317 AS568 Oring Cad 2-317 AS568 Oring
2-317 AS568
AS568-317 HNBR 70 Duro Black O-Ring for 15/16 ID X 3/16 CS

HNBR O-Rings 70 Duro Black H700100-317

$ 2.22 per Each
Minimum Order Quantity (MOQ): 14
Ships within 21 days
Qty Price
14 - 15 $2.2200
16 - 34 $1.6650
34 - 67 $1.4430
68 - 135 $1.2210
136 - 270 $0.9990
271+ $0.8880

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

Product Details
Material HNBR
Temperature Range -40°F to 300°F
Cross Sectional Shape Round
Hardness 70
Dash 317
Fractional
  • ID: 15/16
  • CS: 3/16
  • OD: 1-5/16
Actual (Inch)
  • ID: 0.912 ± 0.010
  • CS: 0.210 ± 0.005
  • OD: 1.332
Actual (Metric)
  • ID: 23.16 ± 0.25
  • CS: 5.33 ± 0.13
  • OD: 33.820

HNBR (Hydrogenated Nitrile Butadiene Rubber) O-rings are made from a hydrogenated version of Nitrile rubber, providing enhanced resistance to heat, oils, and a wide range of chemicals. HNBR O-rings offer excellent mechanical strength, superior wear resistance, and outstanding performance in extreme conditions, including high temperatures and aggressive media. These O-rings are ideal for use in automotive, industrial, and oilfield applications, where durability and reliability are essential.

HNBR Recommended Uses

Automotive fuel systems, automotive seals, industrial equipment, oil and gas applications, hydraulic systems, chemical processing, high-temperature applications, and heavy-duty machinery.

HNBR Not Recommended

Aromatic hydrocarbons, ketones, esters, low molecular weight acids, and amines.

HNBR Limitations

  • Not suitable for applications involving strong acids and alkalis.
  • Not recommended for exposure to polar solvents.
  • Limited low-temperature flexibility compared to other elastomers.
  • Not ideal for applications with high shear and abrasion conditions.
HNBR Usable Temperature Range

-20 to 300°F (-29 to 149°C)

HNBR Also Known As

Hydrogenated Nitrile, HNBR, HSN (Hydrogenated Styrene Nitrile), Peroxide-cured Nitrile.