Mutual Screw & Supply

0.21" CS X 3.6" ID Viton FKM O-Rings | AS568-342 | Dash 342 | 75 Durometer | Brown (12 / Pkg.)

0.21" CS X 3.6" ID Viton FKM O-Rings | AS568-342 | Dash 342 | 75 Durometer | - Main image
$35.99 $52.93 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
  • Material: Viton FKM
  • AS568 dash size: 342
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 3.6" (91.44 mm)
  • Durometer: 75 Shore A
  • Color: Brown
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 12 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 (4.8 / 5 · 5 reviews)

Ruby C. ★★★★★

These fit perfectly into the hydraulic cylinder I rebuilt, and the Viton material handles the high heat without any softening. Much better than the cheap rubber ones that kept failing.

Lily ★★★★★

After fighting with standard Buna-N o-rings on a hot oil application, these Viton FKM rings handle the 400°F with zero issue. The 75 durometer feels firm but not brittle during installation.

Ryan ★★★★★

Installed these on a food-grade pump handling hot oil, and the -15°F to +400°F range gives me confidence they won't fail under thermal cycling. The 0.21" cross-section seated perfectly in the groove.