Mutual Screw & Supply

0.139" CS X 9.734" ID Buna-N Nitrile O-Rings | AS568-275 | Dash 275 | 70 Durometer | Black (35 / Pkg.)

0.139" CS X 9.734" ID Buna-N Nitrile O-Rings | AS568-275 | Dash 275 | 70 - Main image
$35.24 $52.59 In stock

Buna-N Nitrile o-rings in AS568-275, 9.734" inner diameter by 0.139" 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: 275
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 9.734" (247.24 mm)
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 35 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 (4.4 / 5 · 5 reviews)

Stella O. ★★★★★

These O-rings have a slightly tacky feel that helped them seat perfectly in the groove on my first try. The 0.139" cross-section feels substantial and the 70 durometer is just right for a firm seal without being brittle. Exactly what I needed to fix that stubborn hydraulic leak.

Natalie ★★★★★

Found the perfect replacement for a leaky hydraulic cylinder — the 9.734-inch inner diameter matched exactly, and the 70-durometer buna-n handles the heat just fine.

Edward J. ★★★★★

I've been replacing o-rings on an old hydraulic cylinder and these AS568-275s were exactly the right size for the job. The 70 durometer feels sturdy enough for the pressure, and they fit snugly without any trouble. My only minor complaint is the package is a bit excessive for just 35 rings, but they