Mutual Screw & Supply

0.139" CS X 1.234" ID Buna-N Nitrile O-Rings | AS568-218 | Dash 218 | 90 Durometer (500 / Pkg.)

0.139" CS X 1.234" ID Buna-N Nitrile O-Rings | AS568-218 | Dash 218 | 90 - Main image
$40.2 $61.85 In stock

Buna-N Nitrile o-rings in AS568-218, 1.234" 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: 218
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 1.234" (31.34 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 500 per package
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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)

Emma ★★★★★

Came out to exactly 500 rings in the pack and the 90 durometer feels firm enough to trust in a high-pressure line. The -40°F to +250°F range gives me peace of mind for seasonal temperature swings. Already ordered a second box for spares.

Chloe ★★★★★

The 90 durometer hardness is exactly what I needed for a high-pressure pneumatic seal; they fit perfectly and haven't leaked a drop. Pack of 500 will last me years.

Jason V. ★★★★★

ordered these for a hydraulic pump rebuild and the cross-section was exactly right. the -40°F lower limit gives me peace of mind for outdoor winter use. fits perfectly and seals tight.