Mutual Screw & Supply

Buna-N Nitrile O-Rings | AS568-171 | Dash 171 | 70 Durometer | Black (28 / Pkg.)

Buna-N Nitrile O-Rings | AS568-171 | Dash 171 | 70 Durometer | Black (28 / Pkg.) - Main image
$35.74 $51.79 In stock

Buna-N Nitrile o-rings in AS568-171. 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: 171
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 28 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 (4.2 / 5 · 5 reviews)

Natalie ★★★★★

Used one of these in a coolant line repair last weekend and the 70 durometer was firm enough to hold seal without having to overtighten the fitting. Temperature range is exactly what I need for the job.

Penelope ★★★★★

Replaced the worn seals on my hydraulic fitting and the dash 171 size was spot-on for the AS568 chart. The 70 durometer feels firm but still seats easily, and the temperature range covers my garage setup without worry.

Madison K. ★★★★★

These o-rings fit perfectly into my hydraulic cylinder rebuild, and the 70 durometer feels exactly right for the job. I appreciate the wide temperature range since my equipment sees both cold starts and hot running conditions. A solid, no-fuss pack for anyone doing standard repairs.