Mutual Screw & Supply

0.139" CS X 3.609" ID Viton FKM O-Rings | AS568-239 | Dash 239 | 75 Durometer | Black (13 / Pkg.)

0.139" CS X 3.609" ID Viton FKM O-Rings | AS568-239 | Dash 239 | 75 Durometer | - Main image
$36.16 $52.41 In stock

Viton FKM o-rings in AS568-239, 3.609" 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: 239
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 3.609" (91.67 mm)
  • Durometer: 75 Shore A
  • Color: Black
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 13 per package
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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)

Ellie P. ★★★★★

These fit perfectly on my old pressure regulator that needed a high-temp seal. The 75 durometer feels sturdy, and the -15°F to +400°F range gives me confidence for steam applications.

Mia ★★★★★

I’ve been searching for an o-ring that can handle high heat without degrading, and the 400°F rating on these is what sold me. The 3.609" inner diameter was a perfect match for my setup, and the pack of 13 gave me plenty of spares. They feel dense and solid, no squishy cheapness at all.

Julian V. ★★★★★

These 75 durometer Viton FKM rings fit perfectly on my hydraulic fitting, and the -15°F to +400°F temperature range gives me peace of mind for a wide variety of applications. The 3.609" ID was exactly what I needed, and the black finish looks clean.