Mutual Screw & Supply

0.139" CS X 0.609" ID Buna-N Nitrile O-Rings | AS568-208 | Dash 208 | 70 Durometer | Black (700 / Pkg.)

0.139" CS X 0.609" ID Buna-N Nitrile O-Rings | AS568-208 | Dash 208 | 70 - Main image
$30.4 $50.67 In stock

Buna-N Nitrile o-rings in AS568-208, 0.609" 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: 208
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 0.609" (15.47 mm)
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 700 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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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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)

Mia A. ★★★★★

I was pleasantly surprised by the consistent 70 Durometer hardness across all 700 rings. They seated easily in my pneumatic fittings without any deformation, and the nitrile material feels durable enough for repeated use.

Charlotte Y. ★★★★★

These o-rings fit perfectly on my hydraulic fittings and the 70 durometer feels just right for sealing. I've used about a dozen so far with no leaks at all.

Andrew ★★★★★

Picked up a pack of these for some pneumatic fittings and the 70 durometer hardness is perfect for a tight seal without being too stiff. The -40°F rating gives me confidence they'll hold up in the unheated shop this winter.