Mutual Screw & Supply

0.21" CS X 7.475" ID Viton FKM O-Rings | AS568-361 | Dash 361 | 75 Durometer | Brown (8 / Pkg.)

0.21" CS X 7.475" ID Viton FKM O-Rings | AS568-361 | Dash 361 | 75 Durometer | - Main image
$39.69 $57.52 In stock

Viton FKM o-rings in AS568-361, 7.475" 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: 361
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 7.475" (189.86 mm)
  • Durometer: 75 Shore A
  • Color: Brown
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 8 per package
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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 (4.8 / 5 · 5 reviews)

Benjamin N. ★★★★★

Finally found o-rings that can handle the heat near my boiler without getting brittle. These Viton ones survived a full season where the old rubber rings kept failing. The brown color makes them easy to spot against black piping.

Eva ★★★★★

The 0.21" cross-section on these o-rings is noticeably thicker than the standard ones I've used, which gave me confidence sealing a high-temp oil line. They slid into place cleanly and held up during a 350°F test run without any leaks.

Eva F. ★★★★★

I needed a high-temp seal for my compressor manifold, and these Viton FKM rings handle the 350°F discharge air without softening. The 75 durometer feels firm enough to hold pressure yet installed easily with a pick.