Mutual Screw & Supply

0.139" CS X 5.484" ID Viton FKM O-Rings | AS568-254 | Dash 254 | 75 Durometer | Brown (14 / Pkg.)

0.139" CS X 5.484" ID Viton FKM O-Rings | AS568-254 | Dash 254 | 75 Durometer | - Main image
$38.45 $54.93 In stock

Viton FKM o-rings in AS568-254, 5.484" 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: 254
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 5.484" (139.29 mm)
  • Durometer: 75 Shore A
  • Color: Brown
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 14 per package
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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 (5.0 / 5 · 5 reviews)

Carter ★★★★★

The 5.484" inner diameter fit my compressor valve perfectly, and the 75 durometer feels just right for the sealing pressure. Handled the 350°F steam test with no issues at all. These are exactly what I needed for a high-temp repair job.

Julian ★★★★★

I’ve used these in a hot oil system hovering around 300°F and they’ve held their seal perfectly for three months now. The 75 durometer hardness feels just right for both compression and flexibility. Brown color makes them easy to spot during maintenance too.

Brian ★★★★★

The sizing is spot-on for my AS568-254 groove, and the 75 durometer feels nice and firm. I've got them sitting in a 350°F application and they haven't degraded after a few weeks, which is exactly why I switched to Viton.