Mutual Screw & Supply

0.139" CS X 4.734" ID Viton FKM O-Rings | AS568-248 | Dash 248 | 75 Durometer | Black (16 / Pkg.)

0.139" CS X 4.734" ID Viton FKM O-Rings | AS568-248 | Dash 248 | 75 Durometer | - Main image
$39.12 $52.87 In stock

Viton FKM o-rings in AS568-248, 4.734" 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: 248
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 4.734" (120.24 mm)
  • Durometer: 75 Shore A
  • Color: Black
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 16 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)

Scarlett ★★★★★

These hold up great in my high-temp engine bay where standard o-rings would cook. The -15°F to 400°F rating gives me confidence they’ll last through both summer heat and winter cold.

Henry ★★★★★

Finally found o-rings that handle the 400°F rating I needed for my steam line — these fit perfectly and the 75 durometer feels nice and firm without being brittle. The pack of 16 is more than enough for my project.

Emily F. ★★★★★

I swapped these into a hot water valve that kept leaking at 350°F, and the FKM material didn't soften or swell like the old Buna-Ns did. For the price of a 16-pack, I’ve got spares for years.