Mutual Screw & Supply

0.139" CS X 0.546" ID Buna-N Nitrile O-Rings | AS568-207 | Dash 207 | 90 Durometer (700 / Pkg.)

0.139" CS X 0.546" ID Buna-N Nitrile O-Rings | AS568-207 | Dash 207 | 90 - Main image
$34.99 $53.01 In stock

Buna-N Nitrile o-rings in AS568-207, 0.546" 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: 207
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 0.546" (13.87 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 700 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)

Charlotte C. ★★★★★

I needed a bulk pack for a big rebuild job and these o-rings fit the AS568-207 spec perfectly. The 90 durometer is noticeably stiffer than the standard 70, which should hold up better under high pressure.

Riley ★★★★★

The 90 durometer rating on these makes them noticeably stiffer than the standard 70s I usually grab, which is exactly what I needed for a high-pressure seal. They slid on without tearing, and the -40°F to +250°F range covers everything I've thrown at them. A full pack of 700 means I won't be reorder

Sofia F. ★★★★★

I’ve had a few projects that required oil resistance, and these Buna-N O-rings held up perfectly in contact with motor oil for a month straight. The 90 durometer feels durable for high-pressure assemblies, and the pack of 700 is a solid value for shop stock.