Mutual Screw & Supply

0.139" CS X 1.359" ID Buna-N Nitrile O-Rings | AS568-220 | Dash 220 | 50 Durometer (120 / Pkg.)

0.139" CS X 1.359" ID Buna-N Nitrile O-Rings | AS568-220 | Dash 220 | 50 - Main image
$38.07 $52.88 In stock

Buna-N Nitrile o-rings in AS568-220, 1.359" 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: 220
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 1.359" (34.52 mm)
  • Durometer: 50 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 120 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 (4.8 / 5 · 5 reviews)

John ★★★★★

Just swapped out the factory o-rings on my hydraulic press with these, and the 50-durometer Buna-N seals way better against oil seepage at low pressures. The pack of 120 is plenty for multiple spares too.

Leo ★★★★★

Needed these for a hydraulic cylinder rebuild and the 50 durometer softness made them seat perfectly on the first try. At 120 per pack, I’ve got plenty left for future projects too.

Sophia ★★★★★

The 50 durometer is noticeably softer than standard o-rings, making them much easier to seat in tight grooves without rolling. I used a dozen to seal a hydraulic fitting on my press, and they fit the 1.359" ID perfectly even after a hot work cycle.