Mutual Screw & Supply

0.21" CS X 11.475" ID Buna-N Nitrile O-Rings | AS568-376 | Dash 376 | 70 Durometer | Black (30 / Pkg.)

0.21" CS X 11.475" ID Buna-N Nitrile O-Rings | AS568-376 | Dash 376 | 70 - Main image
$43.13 $58.28 In stock

Buna-N Nitrile o-rings in AS568-376, 11.475" inner diameter by 0.21" cross-section. Service range -40°F to +250°F (-40°C to +121°C). Also known as NBR, Buna-N, Chemigum, Hycar, Perbunan.

Specifications

  • Product type: O-Ring
  • Material: Buna-N Nitrile
  • AS568 dash size: 376
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 11.475" (291.46 mm)
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 30 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 (4.8 / 5 · 5 reviews)

Kevin ★★★★★

I needed a large o-ring for a hydraulic cylinder repair, and these 11.475" inner diameter ones fit the groove perfectly. The 70 durometer rubber sealed tight without being too stiff to work with.

Eli H. ★★★★★

These 70-durometer o-rings feel nicely pliable and seated perfectly in my pneumatic cylinder groove. The 0.21" cross-section held pressure without any leaks on the first test run. Glad I grabbed the 30-pack for future rebuilds.

David A. ★★★★★

Used one as a gasket for a hydraulic reservoir cap that kept weeping—the 70 durometer gave just enough squeeze without deforming. Fit the groove perfectly at 11.475" ID, and the -40°F rating is a bonus for our unheated shop.