Mutual Screw & Supply

0.139" CS X 0.734" ID Buna-N Nitrile O-Rings | AS568-210 | Dash 210 | Square Profile | 70 Durometer (400 / Pkg.)

0.139" CS X 0.734" ID Buna-N Nitrile O-Rings | AS568-210 | Dash 210 | Square - Main image
$34.92 $50.61 In stock

Buna-N Nitrile o-rings in AS568-210, 0.734" 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 (Square Profile)
  • Material: Buna-N Nitrile
  • AS568 dash size: 210
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 0.734" (18.64 mm)
  • Durometer: 70 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 400 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 (4.6 / 5 · 5 reviews)

Riley ★★★★★

These are the exact size I needed for a hydraulic fitting rebuild. The 70 durometer nitrile feels plenty firm for the pressure range, and they should easily handle the -40°F rating we see in winter. Good to have a full bag on hand for future jobs.

Joseph ★★★★★

The square profile on these 70 durometer o-rings seated perfectly in my hydraulic fitting groove. They feel dense and well-molded, and the pack of 400 should last me years. Just the right size for my standard dash 210 applications.

Matthew B. ★★★★★

I needed to replace some worn seals in a hydraulic fitting and these AS568-210 square cuts grabbed a lot better than standard rounds. The 70 durometer feels just flexible enough to seat easily, but they hold their shape well under pressure. For the bulk price of 400, I’ve got more than enough for fu