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O-Ring, Viton, 90A, 21" ID 21-1/2" OD 1/4" W, black

Mr O-Ring ★ 4.0/5 · ItemOracle Score Mid-Range

$54.99
Last verified 23 hours ago · Subject to change
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470 O-Ring, Viton, 90A Durometer, 21" ID, 21-1/2" OD, 1/4" Width, Black

Viton O-ring with 90A durometer for sealing cylindrical surfaces. Broad chemical and temperature compatibility, suitable for various applications. Customer note: durable and versatile with good fit, though some sizing opinions vary

Highlights

  • chemical resistance
  • broad temperature tolerance
  • AS568A standard compliance

Pros

  • Viton material for chemical resistance
  • 90A hardness for sealing cylindrical surfaces
  • wide temperature range
  • meets aerospace standard AS568A
  • durable across multiple applications

Cons

  • mixed opinions on size fit

Best For

  • spas and heaters
  • lathe work
  • pet food vaults
  • general seal between cylindrical parts
  • chemical resistance applications

Features

  • Viton fluorocarbon elastomer for compatibility with various chemicals and fuels
  • Durometer hardness rated at 90A
  • Round cross-section creates a seal between cylindrical overlapping surfaces
  • Operates across -15°F to 450°F (-26°C to 232°C) temperature range
  • Conforms to Aerospace Standard AS568A requirements

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