Mutual Screw & Supply

0.139" CS X 0.671" ID Buna-N Nitrile O-Rings | AS568-209 | Dash 209 | 90 Durometer (600 / Pkg.)

0.139" CS X 0.671" ID Buna-N Nitrile O-Rings | AS568-209 | Dash 209 | 90 - Main image
$35.1 $51.62 In stock

Buna-N Nitrile o-rings in AS568-209, 0.671" 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: 209
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 0.671" (17.04 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 600 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 (4.4 / 5 · 5 reviews)

Elizabeth ★★★★★

Ordered these for a batch of hydraulic fittings and the 90 durometer hardness is spot on—they seat firmly without squishing out under pressure. The -40°F to 250°F range covers what I need for outdoor equipment in winter. 600 in a pack means I won't be reordering for a while, which is exactly what I

Ellie J. ★★★★★

Had to replace a batch of old seals in a hydraulic press, and these 90-durometer rings fit perfectly without any tweaking. The temperature range is exactly what I needed for high-heat applications.

Olivia I. ★★★★★

Finally found o-rings that actually hold up in my hydraulic setup; the 90 durometer makes them noticeably firmer than the standard ones I've tried. The 600-count pack will last me through multiple rebuilds, and the 0.671" inner diameter fit perfectly on the shaft.