Mutual Screw & Supply

0.21" CS X 0.849" ID Viton FKM O-Rings | AS568-316 | Dash 316 | 75 Durometer | Brown (50 / Pkg.)

0.21" CS X 0.849" ID Viton FKM O-Rings | AS568-316 | Dash 316 | 75 Durometer | - Main image
$39.66 $56.66 In stock

Viton FKM o-rings in AS568-316, 0.849" 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: 316
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 0.849" (21.56 mm)
  • Durometer: 75 Shore A
  • Color: Brown
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 50 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)

Violet ★★★★★

Finally tracked down a 0.849" ID o-ring that handles both steam and hot oil. These Viton ones feel denser than my usual nitrile, and the 400°F rating gives me peace of mind on the pump rebuild.

Emily C. ★★★★★

I’m building a custom steam valve and these o-rings popped right in. The 75 durometer feels firm yet flexible enough for a good seal. So far no issues after several cycles at 350°F.

Benjamin S. ★★★★★

Needed a high-temp seal for a hydraulic fitting near a heat source, and these Viton FKM rings handle the 400°F rating without any issues. The 75 durometer feels just right, not too hard to seat but firm enough to hold pressure.