2-408 AS568 Oring Cad 2-408 AS568 Oring
2-408 AS568
AS568-408 Silicone 50 Duro Red FDA O-Ring for 2-3/8 ID X 1/4 CS

Silicone O-Rings 50 Duro Red FDA S500301-408

$ 3.41 per Each
Minimum Order Quantity (MOQ): 9
Out of stock
Qty Price
9 - 10 $3.4100
11 - 22 $2.5575
22 - 43 $2.2165
44 - 87 $1.8755
88 - 175 $1.5345
176+ $1.3640

This item is out of stock. Request a quote and we'll confirm pricing and lead time for your quantity.

Product Details
Material Silicone
Temperature Range -75°F to 450°F
Cross Sectional Shape Round
Hardness 50
Dash 408
Fractional
  • ID: 2-3/8
  • CS: 1/4
  • OD: 2-7/8
Actual (Inch)
  • ID: 2.35 ± 0.018
  • CS: 0.275 ± 0.006
  • OD: 2.900
Actual (Metric)
  • ID: 59.69 ± 0.46
  • CS: 6.99 ± 0.15
  • OD: 73.670

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.