2-904 AS568 Oring Cad 2-904 AS568 Oring
2-904 AS568
AS568-904 Silicone 70 Duro Red FDA O-Ring for ID X CS

Silicone O-Rings 70 Duro Red FDA S700301-904

$ 0.0588 per Each
Minimum Order Quantity (MOQ): 511
Ships within 7 days
Qty Price
511 - 595 $0.0588
596 - 1275 $0.0441
1276 - 2550 $0.0353
2552 - 5101 $0.0265
5103 - 10203 $0.0206
10205+ $0.0176

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

Product Details
Material Silicone
Temperature Range -75°F to 450°F
Cross Sectional Shape Round
Hardness 70
Dash 904
Actual (Inch)
  • ID: 0.351 ± 0.005
  • CS: 0.072 ± 0.003
  • OD: 0.495
Actual (Metric)
  • ID: 8.92 ± 0.13
  • CS: 1.83 ± 0.08
  • OD: 12.580

Silicone O-rings are made from a synthetic elastomer composed of silicon, oxygen, hydrogen, and carbon. They are widely used for their excellent flexibility, high-temperature resistance, and exceptional aging properties. Silicone O-rings offer great thermal stability, low toxicity, and resistance to weathering, ozone, and UV exposure, making them ideal for medical, automotive, and food-grade applications. Many silicone compounds are **FDA-compliant**, making them suitable for food and pharmaceutical uses.

Silicone Recommended Uses

Medical and pharmaceutical applications, food and beverage processing, automotive components, aerospace industries, high-temperature sealing applications, and electrical insulation.

Silicone Not Recommended

Petroleum-based oils, fuels, concentrated acids, alkalis, ketones, and steam under high pressure.

Silicone Limitations

  • Not resistant to petroleum-based fluids and fuels.
  • Lower mechanical strength compared to other elastomers.
  • Not ideal for applications requiring high tear and abrasion resistance.
  • Can swell or degrade when exposed to certain chemicals and oils.
Silicone Usable Temperature Range

-85 to 450°F (-65 to 232°C)

Silicone Also Known As

Silicone Rubber, VMQ (Vinyl Methyl Silicone), Polysiloxane.