Mutual Screw & Supply

0.139" CS X 2.859" ID Buna-N Nitrile O-Rings | AS568-233 | Dash 233 | 70 Durometer | Black (200 / Pkg.)

0.139" CS X 2.859" ID Buna-N Nitrile O-Rings | AS568-233 | Dash 233 | 70 - Main image
$35.53 $50.76 In stock

Buna-N Nitrile o-rings in AS568-233, 2.859" 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: 233
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 2.859" (72.62 mm)
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 200 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 (5.0 / 5 · 5 reviews)

Brian Z. ★★★★★

The 70 durometer hardness is exactly right for my hydraulic fittings—they seat firmly without deforming. I went through a whole pack replacing old cracked seals and every single one fit the 2.859" ID groove perfectly. At this price for 200, I won't have to worry about spares for years.

Hannah ★★★★★

Used one to replace a worn seal on a hydraulic fitting and it seated perfectly, no leaks. The 70 durometer feels just right for this application, not too stiff. Exactly what I needed for the price of a single pack.

Lucy ★★★★★

These o-rings fit the AS568-233 spec perfectly and the 70 durometer feels nice and firm for sealing my hydraulic fittings. The temperature range down to -40°F gives me confidence for outdoor equipment use.