Mutual Screw & Supply

0.139" CS X 1.609" ID Buna-N Nitrile O-Rings | AS568-223 | Dash 223 | Square Profile | 70 Durometer (200 / Pkg.)

0.139" CS X 1.609" ID Buna-N Nitrile O-Rings | AS568-223 | Dash 223 | Square - Main image
$36.96 $51.34 In stock

Buna-N Nitrile o-rings in AS568-223, 1.609" 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 (Square Profile)
  • Material: Buna-N Nitrile
  • AS568 dash size: 223
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 1.609" (40.87 mm)
  • Durometer: 70 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 200 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)

Timothy O. ★★★★★

I needed o-rings that could handle both hot oil and cold starts without cracking, and these Buna-N ones have been perfect so far. The 70 durometer feels firm but not brittle, and the square profile kept them from rolling out of the groove during assembly.

Emma X. ★★★★★

The square profile seats better in my worn groove than round ones usually do, and the 70 durometer feels firm without being brittle. I used about 30 of them resealing a hydraulic manifold and none have leaked so far.

Amelia V. ★★★★★

These will handle the heat range fine, so I'm using them in a hydraulic setup that gets close to 200 degrees. The 70 durometer gives just enough give to seat without feeling flimsy, and the square profile really locks them into the groove.