Mutual Screw & Supply

Buna-N Nitrile O-Rings | AS568-155 | Dash 155 | 70 Durometer | Black (200 / Pkg.)

Buna-N Nitrile O-Rings | AS568-155 | Dash 155 | 70 Durometer | Black (200 / - Main image
$36.82 $54.95 In stock

Buna-N Nitrile o-rings in AS568-155. 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: 155
  • 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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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 (5.0 / 5 · 5 reviews)

Evelyn C. ★★★★★

Been swapping these into my old pneumatic fittings and they seat perfectly—the 70 durometer is firm enough to hold pressure without being a pain to squeeze into place. Shipping was quick and the 200 count means I'll have spares for years. Just what I needed for this rebuild.

Emma V. ★★★★★

The durometer feels spot-on for my hydraulic fittings—firm enough to seal tightly without needing a wrench to force them in. These 200-pack o-rings arrived quickly and the package is resealable, which I appreciate for storing the leftovers.

Avery W. ★★★★★

I needed standard dash 155 o-rings for a hydraulic seal replacement and these fit perfectly with the right 70 durometer feel. They've held up fine in the 200°F range so far with no visible wear.