Mutual Screw & Supply

0.139" CS X 3.734" ID Viton FKM O-Rings | AS568-240 | Dash 240 | 90 Durometer (30 / Pkg.)

0.139" CS X 3.734" ID Viton FKM O-Rings | AS568-240 | Dash 240 | 90 Durometer - Main image
$31.18 $50.29 In stock

Viton FKM o-rings in AS568-240, 3.734" 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: 240
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 3.734" (94.84 mm)
  • Durometer: 90 Shore A
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 30 per package
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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 (4.6 / 5 · 5 reviews)

Ellie M. ★★★★★

The 90 durometer hardness gives these a nice firm feel without being brittle, and the 400°F rating gives me confidence for my hot oil application. They seated perfectly in the groove and held pressure on the first try.

Grace ★★★★★

I needed o-rings that could handle the 400°F range of my industrial drying cabinet, and these Viton FKM ones arrived with the exact 3.734" inner diameter I measured. They seated perfectly in the groove and haven't shown any signs of melting or cracking after a week of continuous use.

Claire ★★★★★

I've been using these for a high-temp pneumatic seal repair, and the 90 durometer feels really solid. They seat nicely in the groove and haven't shown any swelling after a week in contact with a mild solvent. Exactly what I needed for the application.