FS4000-08 Buna-N NBR Face Seal O-Ring | 90-Durometer Hydraulic Seal

Product Description

The FS4000-08 Buna-N NBR Face Seal O-Ring is a precision seal for SAE O-Ring Face Seal hydraulic adapters and connectors. Made from 90-Durometer nitrile (Buna-N), this O-ring is optimized for compatibility with hydraulic fluids including petroleum-based oils and water-based media.

Specifications

• Material: Buna-N (90 Durometer)
  
• Shape: O-Ring
  
• Nominal Size: 08
• Designed for SAE ORFS hydraulic fittings
  

Features

• Oil-resistant Buna-N compound
  
• High compression and extrusion resistance
  
• Optimized for face seal applications
  
• Reliable hydraulic sealing up to high pressures
  

Applications

• ORFS face seal adapter joints
  
• Hydraulic hose assemblies
  
• Industrial machines and power units
  
• Mobile hydraulic equipment
  

ORFS face seal technology isolates the sealing groove from fluid pressure, reducing extrusion and wear. The FS4000-08 is widely used in medium-pressure hydraulic lines where reliable, high-performance sealing is critical. Its material hardness and fluid resistance deliver dependable performance in industrial, mobile, and OEM hydraulic systems.