Mutual Screw & Supply

0.21" CS X 8.225" ID HNBR O-Rings | AS568-364 | Dash 364 | 80 Durometer (6 / Pkg.)

0.21" CS X 8.225" ID HNBR O-Rings | AS568-364 | Dash 364 | 80 Durometer (6 / - Main image
$42.25 $59.5 In stock

HNBR o-rings in AS568-364, 8.225" inner diameter by 0.21" cross-section. Service range -40°F to +300°F (-40°C to +149°C). Also known as HSN, Highly Saturated Nitrile.

Specifications

  • Product type: O-Ring
  • Material: HNBR
  • AS568 dash size: 364
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 8.225" (208.91 mm)
  • Durometer: 80 Shore A
  • Temperature range: -40°F to +300°F (-40°C to +149°C)
  • Measurement type: Imperial
  • Pack quantity: 6 per package
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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 (4.8 / 5 · 5 reviews)

Joseph J. ★★★★★

These o-rings are the exact size I needed for a hydraulic cylinder rebuild. The 80 durometer felt noticeably firmer than the old 70A ones I'd tried before, and they sealed perfectly under pressure.

Ryan X. ★★★★★

I needed a replacement for a worn-out seal in a hydraulic press, and these 80-durometer HNBR rings fit perfectly and seal tight even at sustained 275°F. The 0.21" cross-section feels more substantial than the stock rubber ones.

William E. ★★★★★

These o-rings handled the heat from my hydraulic line rebuild perfectly, and that -40°F to 300°F range gives me confidence they'll last. The 80 durometer feels firm but not brittle, which is just right for sealing that 8.225" ID.