2-353 AS568 Oring Cad 2-353 AS568 Oring
2-353 AS568
AS568-353 Silicone 50 Duro Red FDA O-Ring for 5 ID X 3/16 CS

Silicone O-Rings 50 Duro Red FDA S500301-353

$ 3.76 per Each
Minimum Order Quantity (MOQ): 8
Out of stock
Qty Price
8 - 9 $3.7600
10 - 20 $2.8200
20 - 39 $2.4440
40 - 79 $2.0680
80 - 159 $1.6920
160+ $1.5040

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 353
Fractional
  • ID: 5
  • CS: 3/16
  • OD: 5-3/8
Actual (Inch)
  • ID: 4.975 ± 0.037
  • CS: 0.210 ± 0.005
  • OD: 5.395
Actual (Metric)
  • ID: 126.37 ± 0.94
  • CS: 5.33 ± 0.13
  • OD: 137.030

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.