Black Buna-N O-Ring | 28mm ID x 4.5mm Wide | 70 Durometer
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Black Buna-N O-Ring | 28mm ID x 4.5mm Wide | 70 Durometer

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Black Buna-N O-Ring | 28mm ID x 4.5mm Wide | 70 Durometer (80/Pkg.)

Mutual ScrewSKU: ZMUSH4.5X28B10
Price:
$33.20per 80( $0.42 each)
Pieces 80
Measurement type Metric
Material Nitrile
Color Black
Cross section 4.5
Cross section shape Round
Durometer 70
Inner diameter 28
Outer diameter 37
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

The 80 PC Black Buna-N O-Ring assortment provides metric-sized seals designed for oil-based systems. Each O-ring maintains a 28 millimeter inside diameter, 4.5 millimeter cross-section, and 70 Shore A hardness across the full set to ensure consistent sealing performance.

Specs

  • Dimensions: Inside diameter 28 millimeters; Cross-section 4.5 millimeters
  • Material grade: Buna-N (NBR) with 70 Shore A hardness
  • Packaging: 80 pieces total, organized as eight packs of ten (10 pieces per pack)

Features

  • Oil resistance: Buna-N elastomer provides reliable sealing in oil-based environments
  • Precise sizing: Consistent 4.5 millimeter cross-section and 28 millimeter inside diameter across all pieces
  • Metric sizing: 28 millimeter ID by 4.5 millimeter CS format aligns with standard specifications for easy replacement
  • Inventory efficiency: 80-piece assortment organized into eight packs of ten for rapid access during maintenance
  • Application versatility: Suitable for standard hydraulic, pneumatic, and consumer or industrial sealing assemblies using metric O-rings

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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