Mutual Screw & Supply

0.139" CS X 0.796" ID Buna-N Nitrile O-Rings | AS568-211 | Dash 211 | 90 Durometer (600 / Pkg.)

0.139" CS X 0.796" ID Buna-N Nitrile O-Rings | AS568-211 | Dash 211 | 90 - Main image
$36.52 $52.93 In stock

Buna-N Nitrile o-rings in AS568-211, 0.796" 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: 211
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 0.796" (20.22 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 600 per package
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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 (4.6 / 5 · 5 reviews)

Richard ★★★★★

The 90 durometer rating on these is perfect for the hydraulic application I needed—they seat firmly without deforming. Came securely packed in a full 600 count, which will last me years. At this price per unit, they're an incredible value for a high-temp seal.

Harper U. ★★★★★

These o-rings fit the dash 211 groove perfectly with no binding, and the 90 durometer feels noticeably stiffer than the 70 I've used before. For the price of a 600-pack, I can finally stop worrying about having the right size on hand.

Chloe B. ★★★★★

Needed a full rebuild of my hydraulic setup, and these arrived with a perfect 0.796" ID seating on every fitting the first pass. The 90 durometer has zero give under pressure, and the lot of 600 means I've got spares for a decade.