AN6227B / MS28775 Hydraulic O-Rings

Price range: $0.93 through $3.57

Falcon Field Delivery/Pickup/SHIP

Product Barcode

AN6227B / MS28775 Hydraulic O-Rings are precision sealing rings commonly used throughout certified and experimental aircraft hydraulic systems. Manufactured to military and aerospace specifications, these O-rings provide reliable sealing performance in hydraulic components, brake systems, master cylinders, actuators, shock struts, and other fluid-handling applications.

The AN6227B series is the legacy designation, while MS28775 is the current military specification equivalent. Both part numbers identify the same standard aerospace O-ring dimensions and are widely recognized throughout the aviation industry.

Constructed from high-quality nitrile (Buna-N) rubber compounds designed for compatibility with petroleum-based hydraulic fluids, these O-rings offer excellent resistance to hydraulic oils, lubricants, and environmental exposure commonly encountered in aircraft service.

.

Features:

  • Military-specification hydraulic O-rings
  • AN6227B and MS28775 equivalent part numbers
  • Commonly used in aircraft hydraulic and brake systems
  • Compatible with petroleum-based hydraulic fluids
  • Precision-molded for reliable sealing performance
  • Suitable for certified and experimental aircraft applications
  • Available in multiple standard dash sizes

.

Always verify compatibility, dimensions, and installation requirements before use.

For fuel-system applications requiring fuel-resistant O-rings, see our MS29513 listing.

Store Home
To text Airplane Caretaker, click the blue circle