Mutual Screw & Supply

0.103" CS X 2.111" ID Buna-N Nitrile O-Rings | AS568-138 | Dash 138 | 90 Durometer (300 / Pkg.)

0.103" CS X 2.111" ID Buna-N Nitrile O-Rings | AS568-138 | Dash 138 | 90 - Main image
$36.18 $51.68 In stock

Buna-N Nitrile o-rings in AS568-138, 2.111" inner diameter by 0.103" 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: 138
  • Cross-section: 0.103" (2.62 mm)
  • Inner diameter: 2.111" (53.62 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 300 per package
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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)

Nicholas ★★★★★

The 90 durometer hardness gives these o-rings a solid, durable feel that I trust for sealing applications. I've been using them on a hydraulic repair job, and they hold up well under pressure without any visible deformation. Exactly what I needed for the 2.111" ID fitment.

Hannah P. ★★★★★

The 2.111" ID fits perfectly on my hydraulic cylinder gland, and the 90 durometer gives them a firm seat without any squish. I've had them in service for a month now, no leaks, no swelling at 180°F oil. For a three-hundred pack at this price, they're a solid buy.

Stella ★★★★★

The 90 durometer makes these o-rings hold their shape perfectly in high-pressure hydraulic fittings. I replaced some old seals and the leak stopped immediately—the 2.111" ID was a spot-on fit for my application.