Mutual Screw & Supply

0.139" CS X 10.484" ID Viton FKM O-Rings | AS568-278 | Dash 278 | 75 Durometer | Brown (5 / Pkg.)

0.139" CS X 10.484" ID Viton FKM O-Rings | AS568-278 | Dash 278 | 75 Durometer - Main image
$39.25 $53.04 In stock

Viton FKM o-rings in AS568-278, 10.484" 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: 278
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 10.484" (266.29 mm)
  • Durometer: 75 Shore A
  • Color: Brown
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 5 per package
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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)

Owen D. ★★★★★

The 0.139" cross-section was exactly what I needed for a custom pneumatic seal. These brown FKM rings fit perfectly and seem plenty durable for the moderate heat I'm working with.

Evelyn W. ★★★★★

Ordered these for a high-temp hydraulic seal repair and the 400°F rating gives me peace of mind. The 0.139" cross-section fits perfectly in the groove like it was made for it.

Owen E. ★★★★★

The brown color makes them easy to spot during assembly, and the Viton material handled the high-temp oil in my pump without any swelling. These -278 size O-rings seated perfectly in the groove on the first try.