Mutual Screw & Supply

0.139" CS X 5.734" ID Viton FKM O-Rings | AS568-256 | Dash 256 | 75 Durometer | Brown (14 / Pkg.)

0.139" CS X 5.734" ID Viton FKM O-Rings | AS568-256 | Dash 256 | 75 Durometer | - Main image
$39.21 $56.83 In stock

Viton FKM o-rings in AS568-256, 5.734" inner diameter by 0.139" cross-section. Service range -15°F to +400°F (-26°C to +204°C). Also known as FKM, Fluoroelastomer.

Specifications

  • Product type: O-Ring
  • Material: Viton FKM
  • AS568 dash size: 256
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 5.734" (145.64 mm)
  • Durometer: 75 Shore A
  • Color: Brown
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 14 per package
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Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Madison N. ★★★★★

Finally a replacement for a stubborn AC unit seal — the 5.734" ID fits perfectly around the compressor line, and the Viton feels much more heat-resistant than the old Buna-N gasket I was using.

Edward C. ★★★★★

The brown color makes them easy to spot in my toolbox, and the Viton material handles the heat from my hydraulic pump without any softening. They slipped right into the groove with no binding, so the fit is spot on.

John V. ★★★★★

The 5.734" inner diameter fits my application perfectly, and the Viton material feels durable enough for repeated thermal cycling. I appreciate the -15°F to 400°F range, as these are going into a hot oil system. The brown color makes them easy to spot among other parts.