Mutual Screw & Supply

0.21" CS X 10.725" ID Buna-N Nitrile O-Rings | AS568-374 | Dash 374 | 70 Durometer | Black (30 / Pkg.)

0.21" CS X 10.725" ID Buna-N Nitrile O-Rings | AS568-374 | Dash 374 | 70 - Main image
$35.43 $56.24 In stock

Buna-N Nitrile o-rings in AS568-374, 10.725" 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: 374
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 10.725" (272.41 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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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 (4.4 / 5 · 5 reviews)

Emily ★★★★★

Installed these on a large hydraulic cylinder rebuild, and the 70 durometer struck a nice balance between sealing tight and sliding into place without tearing. The package of 30 was more than I needed, but it’s good to have spares for future jobs.

Charlotte ★★★★★

The 0.21-inch cross-section is noticeably beefier than the thinner o-rings I've used before, so it sits snug in the groove without rolling out during assembly. Sealed up the hydraulic port perfectly on the first try.

Hazel ★★★★★

The 0.21" cross-section on these o-rings fits perfectly into my pump’s groove, much better than the old ones I had. They seal tight without any leaks, and the 70 durometer feels just right for the job.