FS4000-24 Buna-N NBR Face Seal O-Ring | 90 Durometer Hydraulic ORFS Seal

Product Description

The FS4000-24 Buna-N NBR Face Seal O-Ring is a high-performance sealing component engineered to provide dependable, leak-resistant sealing in hydraulic systems using SAE ORFS (O-Ring Face Seal) fittings. Constructed from Buna-Nitrile rubber with 90-durometer hardness, this O-ring has been formulated for resistance to wear, compression set, and common hydraulic fluids.

Specifications

• Material: Buna-Nitrile (NBR), 90 Durometer
  
• Shape: O-Ring
• Nominal Size: 24
• Compatible with SAE ORFS hydraulic systems

Features

• Buna-N material optimized for fluid resistance
  
• 90-durometer hardness for extrusion durability
  
• Seals flat face ORFS connections reliably
  
• Built for high pressure hydraulic use
  
• Long-lasting sealing under cyclic loads

Applications

• Fluid power manifold sealing
  
• High pressure ORFS adapter joints
  
• Pump and valve connection sealing
  
• Industrial and construction hydraulic systems
  
• Heavy equipment hydraulic circuits
  

Face seal technology isolates the sealing element from line pressure and mechanical disturbance, ensuring a stable, flat sealing interface between adapters, hoses, manifolds, and port connectors. The FS4000-24 is sized for Nominal Size 24 ORFS fittings, making it suitable for larger-bore connections found in industrial fluid power systems, heavy machinery, and mobile hydraulic circuits.

Buna-N’s fluid compatibility with petroleum-based oils, mineral oils, and many industrial fluids ensures broad applicability, while the firm hardness rating improves resistance to extrusion under high pressure, delivering long service life in dynamic operating environments.