Mutual Screw & Supply

0.139" CS X 0.671" ID Buna-N Nitrile O-Rings | AS568-209 | Dash 209 | 70 Durometer | Black (700 / Pkg.)

0.139" CS X 0.671" ID Buna-N Nitrile O-Rings | AS568-209 | Dash 209 | 70 - Main image
$39.36 $53.19 In stock

Buna-N Nitrile o-rings in AS568-209, 0.671" 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: 209
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 0.671" (17.04 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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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 (4.4 / 5 · 5 reviews)

Hannah X. ★★★★★

My drawer of spare o-rings was getting pathetic, but now that I have a full bag of these 209s, I can finally stop scavenging old fittings. They slipped into the grooves easily and the 70 durometer feels firm enough for a solid seal on my hydraulic lines.

Riley W. ★★★★★

The 700-count bag is a serious value when you're swapping out seals across a whole machine, and the 70 durometer feels just right for a firm but forgiving fit. They slipped into the grooves without any wrestling, and I'm confident they'll hold up to the temperature swings in our hydraulics.

Emily ★★★★★

I needed a batch of o-rings for a hydraulic repair job and these Buna-N ones fit the AS568-209 groove perfectly. The 70 durometer feels just right for sealing, and the service range down to -40°F gives me confidence for winter use.