Mutual Screw & Supply

0.21" CS X 10.975" ID Buna-N Nitrile O-Rings | AS568-375 | Dash 375 | 70 Durometer | Black (30 / Pkg.)

0.21" CS X 10.975" ID Buna-N Nitrile O-Rings | AS568-375 | Dash 375 | 70 - Main image
$43.05 $57.4 In stock

Buna-N Nitrile o-rings in AS568-375, 10.975" 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: 375
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 10.975" (278.76 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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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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 (4.6 / 5 · 5 reviews)

Matthew V. ★★★★★

These o-rings seated perfectly in my compressor rebuild kit and the 70 durometer feels noticeably firmer than the cheap ones I used before. The 0.21" cross-section matched my groove dimensions exactly on the first try.

Ava ★★★★★

Replaced a worn-out gasket on a large flange and these dropped right into the groove without any wrestling. The 70 durometer hardness feels solid yet forgiving, and the -40°F rating gives me confidence for our outdoor winter equipment. Exactly what I needed at a fair price for a 30-pack.

Elizabeth I. ★★★★★

The 0.21" cross-section fits perfectly in my pump housing groove where thinner o-rings always leaked before. These Buna-N seals held up fine during a hot summer run near 200°F.