Mutual Screw & Supply

0.139" CS X 3.359" ID Viton FKM O-Rings | AS568-237 | Dash 237 | 75 Durometer | Brown (25 / Pkg.)

0.139" CS X 3.359" ID Viton FKM O-Rings | AS568-237 | Dash 237 | 75 Durometer | - Main image
$34.77 $50.39 In stock

Viton FKM o-rings in AS568-237, 3.359" 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: 237
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 3.359" (85.32 mm)
  • Durometer: 75 Shore A
  • Color: Brown
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 25 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 (4.4 / 5 · 5 reviews)

Leo Y. ★★★★★

I’ve used these in a hot oil application that hovered near 300°F and they sealed perfectly with zero swelling or hardening after a month. The 75 durometer feels firm but still seats easily, and the brown color makes them simple to spot during teardown.

Julian J. ★★★★★

These o-rings fit perfectly in my hydraulic cylinder rebuild; the Viton material handles the high operating temperatures without any issues. I appreciate that they came in a resealable pack for storing the extras.

Sofia O. ★★★★★

Finally found the right size for my hydraulic system rebuild—these Viton FKM rings fit the groove perfectly at 3.359" ID. The 75 durometer feels solid but not too stiff, and they handle the high heat from my compressor without any issue. Definitely worth getting the 25-pack for the price.