Mutual Screw & Supply

0.139" CS X 3.359" ID Buna-N Nitrile O-Rings | AS568-237 | Dash 237 | 50 Durometer (70 / Pkg.)

0.139" CS X 3.359" ID Buna-N Nitrile O-Rings | AS568-237 | Dash 237 | 50 - Main image
$35.81 $51.16 In stock

Buna-N Nitrile o-rings in AS568-237, 3.359" 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: 237
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 3.359" (85.32 mm)
  • Durometer: 50 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 70 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 (5.0 / 5 · 5 reviews)

Hazel ★★★★★

I needed a reliable seal for a hydraulic cylinder at work, and these AS568-237 o-rings with a 3.359" ID fit perfectly and held up well at 250°F. The 50 durometer material feels just right for the application—firm but not too stiff.

Elizabeth E. ★★★★★

The 50 durometer compound on these o-rings is noticeably more forgiving than the harder ones I've used before, making installation a breeze without any leaks. They fit the groove perfectly on my pneumatic cylinders, and the 70-pack gives me plenty of spares for future repairs.

Lucy ★★★★★

These seal up perfectly on my hydraulic fittings, and the 50 durometer softness makes them a breeze to seat without any tools. Having 70 in the pack means I've got spares for every project I can think of, and they've held up fine in the cold shop so far.