Mutual Screw & Supply

Buna-N Nitrile O-Rings | AS568-054 | Dash 054 | 70 Durometer | Black (30 / Pkg.)

Buna-N Nitrile O-Rings | AS568-054 | Dash 054 | 70 Durometer | Black (30 / Pkg.) - Main image
$33.7 $52.66 In stock

Buna-N Nitrile o-rings in AS568-054. 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: 054
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 30 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)

George ★★★★★

Used these to replace a dried-out seal on a coolant line, and they fit the AS568-054 spec perfectly. The 70 durometer feels firm but not brittle, and so far no leaks at 180°F. Great value for the pack of 30.

Jacob K. ★★★★★

Tried these on a hydraulic fitting that always leaked before, and the -40°F rating gave me confidence for winter use. So far no weeping at all, and the 70 durometer seems just right for sealing without being too stiff.

Andrew M. ★★★★★

That 70 durometer rating hit the sweet spot — firm enough for my hydraulic lines but not too hard to seat in the groove. They fit perfectly on my shop compressor fittings.