Mutual Screw & Supply

0.21" CS X 2.725" ID Buna-N Nitrile O-Rings | AS568-335 | Dash 335 | 70 Durometer | Black (150 / Pkg.)

0.21" CS X 2.725" ID Buna-N Nitrile O-Rings | AS568-335 | Dash 335 | 70 - Main image
$38.93 $57.25 In stock

Buna-N Nitrile o-rings in AS568-335, 2.725" 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: 335
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 2.725" (69.22 mm)
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 150 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)

Leo O. ★★★★★

I was replacing the seals on an old pneumatic valve bank, and these o-rings slid into place without any binding. The 70 durometer feels just right for the 250°F service limit I need.

Chloe E. ★★★★★

Right on spec for our pneumatic cylinders—the 2.725" ID seals perfectly without any binding. These 70 durometer rings hold up well to the frequent temperature swings in our shop.

George ★★★★★

The 70 durometer hardness feels just right for my pneumatic fittings, and the 2.725" ID seated perfectly without any wrestling. I've used these in a hot oil system around 200°F and they've held up flawlessly so far, so the -40°F to +250°F range gives me confidence for winter too.