2-201 AS568 Oring Cad 2-201 AS568 Oring
2-201 AS568
AS568-201 Silicone 50 Duro Red FDA O-Ring for 3/16 ID X 1/8 CS

Silicone O-Rings 50 Duro Red FDA S500301-201

$ 0.2171 per Each
Minimum Order Quantity (MOQ): 139
Out of stock
Qty Price
139 - 161 $0.2171
162 - 350 $0.1628
346 - 690 $0.1411
691 - 1381 $0.1194
1382 - 2763 $0.0977
2764+ $0.0868

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 201
Fractional
  • ID: 3/16
  • CS: 1/8
  • OD: 7/16
Actual (Inch)
  • ID: 0.171 ± 0.005
  • CS: 0.139 ± 0.004
  • OD: 0.449
Actual (Metric)
  • ID: 4.34 ± 0.13
  • CS: 3.53 ± 0.10
  • OD: 11.400

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.