Mutual Screw & Supply

0.21" CS X 4.1" ID Viton FKM O-Rings | AS568-346 | Dash 346 | 75 Durometer | Black (10 / Pkg.)

0.21" CS X 4.1" ID Viton FKM O-Rings | AS568-346 | Dash 346 | 75 Durometer | - Main image
$35.37 $57.98 In stock

Viton FKM o-rings in AS568-346, 4.1" 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: 346
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 4.1" (104.14 mm)
  • Durometer: 75 Shore A
  • Color: Black
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 10 per package
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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 (4.6 / 5 · 5 reviews)

Riley Q. ★★★★★

The 75 durometer feel is noticeably firmer than the cheap rubber ones I’d been using, and they slide into the groove without rolling or twisting. I torqued the fitting down and it sealed straight away, no leaks. At 4.1 inches ID, they fit my flange perfectly, and the heat rating gives me peace of mi

Madison ★★★★★

These are replacing some old Buna-N ones on a valve that sees steam up to 300°F, and the 4.1" inner diameter fit the groove perfectly without any stretching hassle. I've only had them on for a few weeks, but the Viton material feels noticeably more robust than the cheap rubber ones I used to get.

Julian ★★★★★

The heat rating is exactly why I bought these for my compressor rebuild, and they sealed perfectly on the first try with no leaks. These Viton rings feel much more durable than the standard Buna-N ones I used before.