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-427 S70 FDA Silicone (VMQ) 70 Duro O-Ring



$1.51

Quantity Discount Prices
1-24
$1.51
25-149
$1.13
150+
$0.76

  • Model: S70427
  • 57 in Stock
  • 4-3/4"ID X 5-1/4"OD X 1/4"CS
  • Actual: 4.725"ID X 0.275"CS
  • Metric: 120.02mm ID X 6.99mm CS

4-3/4"ID X 5-1/4"OD X 1/4"CS

Silicone O-Rings (VMQ) Duro 70 - Brick Red - FDA:

The term silicone covers a large group of materials in which vinyl-methyl-silicone (VMQ) is often the central ingredient. Silicone elastomers as a group have relatively low tensile strength, poor tear and wear resistance. However, they have many useful properties as well. Silicone has a good heat resistance, good cold flexibility, and good ozone and weather resistance as well as good insulating and physiologically neutral properties.

Operating temperature:

  • Heat resistance-Up to approximately 400°F (204°C)
  • Cold flexibility-Down to approximately –75°F (–59°C)

Chemical Resistance:

  • Engine and transmission oil (e.g.: ASTM oil No.1)
  • Animal and vegetable oil and grease
  • Brake fluid (non-petroleum base)
  • Fire-resistant hydraulic fluid, HFD-R and HFD-S
  • High molecular weight chlorinated aromatic hydrocarbons (including flame-resistant insulators, and coolant for transformers)
  • Beer, Coffee, Whiskey and Milk
  • Moderate water resistance
  • Diluted salt solutions
  • Sea Water
  • Ozone, aging and weather resistant.

Not Compatible with:

  • Silicone Grease and Oils
  • Super-heated water steam over 250°F (121°C)
  • Acids and alkalis
  • Low molecular weight chlorinated hydrocarbons (trichloroethylene)
  • Chlorine wet or dry
  • Aromatic mineral oil
  • Transmission Fluid
  • Hydrocarbon based fuels
  • Diesel Oil
  • Aromatic hydrocarbons (benzene, toluene).
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