Mutual Screw & Supply

0.139" CS X 3.859" ID Viton FKM O-Rings | AS568-241 | Dash 241 | 75 Durometer | Black (13 / Pkg.)

0.139" CS X 3.859" ID Viton FKM O-Rings | AS568-241 | Dash 241 | 75 Durometer | - Main image
$38.3 $53.94 In stock

Viton FKM o-rings in AS568-241, 3.859" 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: 241
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 3.859" (98.02 mm)
  • Durometer: 75 Shore A
  • Color: Black
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 13 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 (4.6 / 5 · 5 reviews)

Elizabeth ★★★★★

After fighting with a standard Buna-N o-ring that kept flattening on a hot oil seal, these Viton FKM ones slid right in and held perfectly at 200°F. They feel a bit more pliable than I expected for 75 durometer, but the seal hasn't leaked a drop in two weeks.

Joseph J. ★★★★★

These fit perfectly on a fuel pump seal I was rebuilding, and the -15°F to +400°F range gives me real peace of mind about the engine heat. The 75 durometer material feels sturdy but still seats nicely in the groove.

William L. ★★★★★

The 400°F rating is exactly why I grabbed these for a hot oil line, and the 3.859" ID fit the groove perfectly on the first try. The 75 durometer feels sturdy without being rock-hard, and all thirteen in the pack looked clean and uniform.