Black Buna-N O-Ring | 250mm ID x 5mm Wide | 70 Durometer
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Black Buna-N O-Ring | 250mm ID x 5mm Wide | 70 Durometer

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Black Buna-N O-Ring | 250mm ID x 5mm Wide | 70 Durometer (7/Pkg.)

Mutual ScrewSKU: ZMUSH5X250B1
Price:
$31.99per 7( $4.57 each)
Pieces 7
Measurement type Metric
Material Nitrile
Color Black
Cross section 5
Cross section shape Round
Durometer 70
Inner diameter 250
Outer diameter 260
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

Seven-piece Buna-N O-ring set designed for large-diameter sealing in hydraulic and pneumatic systems.

Each O-ring provides 250 millimeters inside diameter and 5 millimeters cross-section, fabricated from Buna-N (NBR) with 70 Shore A hardness to ensure reliable elasticity under load.

Specs

  • Dimensions: ID 250 millimeters; Cross-section 5 millimeters; OD approximately 260 millimeters.
  • Material grade: Buna-N (NBR) 70 Shore A.

Features

  • Oil resistance: Buna-N (NBR) 70 provides oil compatibility for hydraulic and pneumatic circuits.
  • Wear-friendly performance: Maintains seal integrity under cycling loads with reduced wear rate.
  • Elastic stability under load: 70 Shore A hardness delivers consistent compression, ensuring predictable sealing under standard operating conditions.
  • Large-diameter sealing capability: 250 millimeters inside diameter with a 5 millimeters cross-section supports sizable connections in machinery and equipment.
  • Metric sizing compatibility: Designed for metric-based assemblies, enabling precise fitment in European and other metric-standard systems.
  • Packaging configuration: 7-piece total per order (7-Pack); 1 piece per pack.
  • Ideal use cases: Sealing large-diameter hydraulic and pneumatic connections, gaskets for flange interfaces, and bulkhead seals in industrial equipment.

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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