Mutual Screw & Supply

0.21" CS X 4.35" ID Viton FKM O-Rings | AS568-348 | Dash 348 | 90 Durometer (14 / Pkg.)

0.21" CS X 4.35" ID Viton FKM O-Rings | AS568-348 | Dash 348 | 90 Durometer (14 - Main image
$40.35 $55.28 In stock

Viton FKM o-rings in AS568-348, 4.35" inner diameter by 0.21" 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: 348
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 4.35" (110.49 mm)
  • Durometer: 90 Shore A
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 14 per package
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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)

Scarlett ★★★★★

The 90 durometer hardness really makes these feel solid when I seat them, and the 4.35" ID matches my flange perfectly. I've had cheaper ones deform on the first install, but these stayed put under some serious torque.

Michael Z. ★★★★★

The high temp rating is exactly what I needed for a valve seal on a hot air system, and the 90 durometer feels plenty firm. These seated well without any tweaking, which saved me a hassle.

Mia W. ★★★★★

These fit perfectly on the flange of my industrial mixer, and the 90-durometer hardness gives me confidence they’ll hold up under compression. Installed a few weeks ago with zero leaks so far.