Mutual Screw & Supply

0.139" CS X 1.859" ID Buna-N Nitrile O-Rings | AS568-225 | Dash 225 | 50 Durometer (100 / Pkg.)

0.139" CS X 1.859" ID Buna-N Nitrile O-Rings | AS568-225 | Dash 225 | 50 - Main image
$36.25 $51.05 In stock

Buna-N Nitrile o-rings in AS568-225, 1.859" 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: 225
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 1.859" (47.22 mm)
  • Durometer: 50 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 100 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)

Grace O. ★★★★★

Just the right softness for a snug seal without needing brute force to compress them. The 1.859" inner diameter seated perfectly on my valve stem, and the 50 durometer flexed nicely into the groove.

Kevin L. ★★★★★

The 50-durometer hardness makes these o-rings noticeably more forgiving during installation than the harder ones I've fought with, and the -40°F rating gives me confidence for my outdoor gear. A full bag of 100 means I've got plenty of spares for future repairs.

Madison H. ★★★★★

Needed a fresh batch for a pneumatic rebuild, and these 225 o-rings fit perfectly with the 1.859" ID. The nitrile material handled the hydraulic fluid without swelling, which was a relief.