Black Buna-N O-Ring | 249.3mm ID x 5.7mm Wide | 70 Durometer
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Black Buna-N O-Ring | 249.3mm ID x 5.7mm Wide | 70 Durometer

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Black Buna-N O-Ring | 249.3mm ID x 5.7mm Wide | 70 Durometer (10/Pkg.)

Mutual ScrewSKU: ZMUSH5.7X249.3B2
Price:
$34.90per 10( $3.49 each)
Pieces 10
Measurement type Metric
Material Nitrile
Color Black
Cross section 5.7
Cross section shape Round
Durometer 70
Inner diameter 249.3
Outer diameter 260.7
Temp range '-40°F to +250°F (-40°C to +121°C)
Weight 0.5 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

High-precision Buna-N O-Ring set designed for reliable petroleum-based fluid sealing with consistent seating in compatible assemblies. The 70 Shore hardness delivers stable sealing under load while maintaining flexibility across service cycles.

Specs

  • Dimensions: Inside diameter: 249.3 millimeters; Cross-section: 5.7 millimeters.
  • Material: Buna N (Nitrile rubber).
  • Durometer: 70 Shore.
  • Color: Black.

Features

  • Oil and fuel resistance: Buna N elastomer provides compatibility with petroleum-based fluids and fuels.
  • Sealing performance under load: 70 Shore hardness delivers stable sealing while preserving flexibility during dynamic interactions.
  • Dimensional accuracy: Precisely dimensioned inner diameter and cross-section ensure reliable seating in compatible assemblies.
  • Packaging: 2 pieces per pack, enabling targeted replacements across multiple setups.
  • Recommended applications: Suitable for automotive, industrial machinery, and hydraulic systems involving oil-based fluids and seals.
  • Material compatibility: Nitrile-based O-rings resist petroleum oils and fuels; not intended for exposure to highly aggressive solvents or ozone-rich environments.

Can We Help?

If you’re not sure that this product is right for you, give us a call!
800-222-0324

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