Mutual Screw & Supply

0.139" CS X 3.109" ID Buna-N Nitrile O-Rings | AS568-235 | Dash 235 | 70 Durometer | Black (200 / Pkg.)

0.139" CS X 3.109" ID Buna-N Nitrile O-Rings | AS568-235 | Dash 235 | 70 - Main image
$40.68 $55.72 In stock

Buna-N Nitrile o-rings in AS568-235, 3.109" 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: 235
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 3.109" (78.97 mm)
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 200 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 (4.8 / 5 · 5 reviews)

Michael ★★★★★

Replaced the worn-out seals on my hydraulic press and these fit the groove perfectly right out of the bag. The 70 durometer hardness feels solid yet pliable enough to seat without fighting you, and the -40°F rating gives me peace of mind for winter use.

Riley E. ★★★★★

My air compressor kept leaking until I swapped in these AS568-235s, and the 3.109" inner diameter fit the groove perfectly. The buna-n material feels solid and has held up fine through a hot summer, so I'm confident they'll last.

Emily X. ★★★★★

Needed to replace some worn-out seals on an air compressor, and these Buna-N o-rings fit the 3.109" inner diameter perfectly. The 70 durometer feels just right for the application, and the first one has held up well under pressure.