Mutual Screw & Supply

0.21" CS X 2.975" ID Buna-N Nitrile O-Rings | AS568-337 | Dash 337 | 50 Durometer (50 / Pkg.)

0.21" CS X 2.975" ID Buna-N Nitrile O-Rings | AS568-337 | Dash 337 | 50 - Main image
$37.47 $61.42 In stock

Buna-N Nitrile o-rings in AS568-337, 2.975" 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: 337
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 2.975" (75.56 mm)
  • Durometer: 50 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 50 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 (4.6 / 5 · 5 reviews)

Michael V. ★★★★★

These are replacing the old cracked seals on my compressor and the 50 durometer softness made them much easier to seat into the groove without any special tools. They’ve held up fine in the 100-degree heat we’ve been having, so I’m pleased with the purchase. Definitely a solid value for a bag of fif

Lucy ★★★★★

The 50-durometer material feels just right for my project — soft enough to seat easily but firm enough to hold pressure. These fit perfectly into the groove on my hydraulic cylinder rebuild.

Lucy ★★★★★

The 50-pack gives me plenty of extras for future repairs, and the 50-durometer material seals perfectly on my hydraulic fittings. No leaks at all after a week of use at 200°F.