Mutual Screw & Supply

0.21" CS X 3.6" ID Viton FKM O-Rings | AS568-342 | Dash 342 | X-Ring | 70 Durometer (6 / Pkg.)

0.21" CS X 3.6" ID Viton FKM O-Rings | AS568-342 | Dash 342 | X-Ring | 70 - Main image
$42.18 $58.58 In stock

Viton FKM o-rings in AS568-342, 3.6" 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 (X-Ring)
  • Material: Viton FKM
  • AS568 dash size: 342
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 3.6" (91.44 mm)
  • Durometer: 70 Shore A
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 6 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 (4.8 / 5 · 5 reviews)

Hannah ★★★★★

I needed a reliable seal for a high-temp application and these Viton FKM o-rings handle up to 400°F no problem. The 0.21" cross-section fits perfectly in the groove and the 70 durometer gives just the right amount of firmness. Installation was straightforward and they haven't leaked a drop since.

Richard L. ★★★★★

The 70 durometer rating feels spot on for my application, and the X-ring profile seems to seat better than a standard round one. These handle the heat in my compressor setup without any visible wear after a few weeks, and the 3.6" inner diameter was a perfect match.

Isabella ★★★★★

I’ve been using these X-rings in a high-temp hydraulic application, and the Viton FKM material holds up perfectly at 400°F without any hardening. The 70 durometer gives just enough squeeze for a leak-free seal on the 3.6" bore.