Mutual Screw & Supply

0.21" CS X 7.475" ID Buna-N Nitrile O-Rings | AS568-361 | Dash 361 | 70 Durometer | Black (40 / Pkg.)

0.21" CS X 7.475" ID Buna-N Nitrile O-Rings | AS568-361 | Dash 361 | 70 - Main image
$37.54 $51.42 In stock

Buna-N Nitrile o-rings in AS568-361, 7.475" inner diameter by 0.21" 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: 361
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 7.475" (189.86 mm)
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 40 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 (4.2 / 5 · 5 reviews)

Robert V. ★★★★★

These have a nice solid feel to them, not flimsy at all. I needed a large o-ring for a hydraulic setup and the 7.475" inner diameter was a perfect match, and the 250°F rating gives me peace of mind for the warmer months.

Mia X. ★★★★★

The 70 durometer is just right for my hydraulic system rebuild — they seat firmly without being too stiff to install. The temperature range covers our seasonal extremes perfectly, and the whole pack was well-sealed and labeled.

Robert Y. ★★★★☆

The 70 durometer feels just right for my pneumatic cylinder application—sturdy but not too stiff. Only wish the package included a few more spares for future use, but the sizing is dead-on.