Mutual Screw & Supply

0.21" CS X 4.225" ID Viton FKM O-Rings | AS568-347 | Dash 347 | 75 Durometer | Brown (12 / Pkg.)

0.21" CS X 4.225" ID Viton FKM O-Rings | AS568-347 | Dash 347 | 75 Durometer | - Main image
$39.18 $59.37 In stock

Viton FKM o-rings in AS568-347, 4.225" 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: 347
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 4.225" (107.31 mm)
  • Durometer: 75 Shore A
  • Color: Brown
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 12 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)

Adam ★★★★★

Had to swap out an old seal that kept failing under high heat, and these Viton FKM o-rings handle the 400°F rating perfectly. The 75 durometer feels firm but seated smoothly into the groove without any twisting.

Nicholas F. ★★★★★

Ordered these for a hydraulic repair and the -15°F to +400°F range gives me peace of mind for the hot side. The 4.225" inner diameter fit snugly on the gland, and the brown color made them easy to spot during assembly. Solid pack of twelve for the price.

Benjamin W. ★★★★★

Installed these in a high-temp steam line and the 400°F rating gives me peace of mind. The 75 durometer feels dense but still flexible enough to seat easily in the groove.