Mutual Screw & Supply

0.21" CS X 10.975" ID HNBR O-Rings | AS568-375 | Dash 375 | 80 Durometer (4 / Pkg.)

0.21" CS X 10.975" ID HNBR O-Rings | AS568-375 | Dash 375 | 80 Durometer (4 / - Main image
$30.52 $50.87 In stock

HNBR o-rings in AS568-375, 10.975" 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: 375
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 10.975" (278.76 mm)
  • Durometer: 80 Shore A
  • Temperature range: -40°F to +300°F (-40°C to +149°C)
  • Measurement type: Imperial
  • Pack quantity: 4 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)

Daniel G. ★★★★★

Fitting the 375 on my 10.97" hub was snug but clean, exactly what I needed. The HNBR's service range up to 300°F gives me confidence for the hot oil side of things, and the 80 durometer holds shape without squishing out. Got a solid seal on the first try.

Daniel W. ★★★★★

The 0.21" cross-section on these o-rings is noticeably thicker than standard ones I've used, making the fit feel much more secure in my hydraulic cylinder groves. I've had them in service for a week with no leaks at all, even with the system running at 250°F.

Amelia ★★★★★

Used these as replacement seals on a pneumatic actuator that gets hot, and the 300°F rating gave me peace of mind. The 0.21" cross-section seated snugly in the groove without any struggle.