Mutual Screw & Supply

0.21" CS X 7.975" ID HNBR O-Rings | AS568-363 | Dash 363 | 80 Durometer (6 / Pkg.)

0.21" CS X 7.975" ID HNBR O-Rings | AS568-363 | Dash 363 | 80 Durometer (6 / - Main image
$38.27 $57.98 In stock

HNBR o-rings in AS568-363, 7.975" 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: 363
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 7.975" (202.56 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 · 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 ★★★★★

These fit perfectly for the hydraulic cylinder on my tractor, and the 80 durometer feels nice and firm. They sealed up the leak on the first try with no hassle.

Henry Q. ★★★★★

I’d been looking for replacement o-rings that could handle the heat in my truck’s AC compressor, and these HNBR ones rated up to 300°F fit perfectly. The 80 durometer feels sturdy and the 0.21" cross-section seals tight without any leaks.

Sofia ★★★★★

Used these in a hydraulic cylinder that sees 250°F cycles and they haven't hardened or cracked after a month. The 80 durometer gives just the right squeeze without being too stiff.