Mutual Screw & Supply

0.21" CS X 1.975" ID Buna-N Nitrile O-Rings | AS568-329 | Dash 329 | 90 Durometer (150 / Pkg.)

0.21" CS X 1.975" ID Buna-N Nitrile O-Rings | AS568-329 | Dash 329 | 90 - Main image
$42.57 $59.12 In stock

Buna-N Nitrile o-rings in AS568-329, 1.975" inner diameter by 0.21" 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: 329
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 1.975" (50.16 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 150 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)

James Q. ★★★★★

I needed something tougher for my hydraulic fittings, and the 90 durometer rating on these o-rings has held up perfectly under pressure. The 1.975" ID is exactly right for the groove depth I'm working with, and the package of 150 gives me plenty of spares.

Edward G. ★★★★★

These 90-durometer o-rings are holding up great in my air compressor rebuild, the material feels dense and durable. For the price per pack of 150, it's hard to beat this value for standard AS568 sizes.

Steven ★★★★★

The 1.975" inner diameter fits perfectly on my hydraulic cylinder gland, and the 90 durometer stiffness makes them hold their shape even when I'm wrestling them into place. I've had these in service for a few weeks now with hot oil and no leaks or swelling.