BACK (P/N ms28774-333) - New Surplus
P/N: ms28774-333
Category: General Aircraft Parts
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 2 Available |
Product Description
The MS28774-333 is a single-turn, scarf-cut backup ring manufactured from PTFE that prevents O-ring extrusion in aircraft hydraulic and pneumatic system glands. This anti-extrusion element installs behind an AS568 O-ring in high-pressure actuators and fluid system components. Conforming to MS28774 and SAE-AS8791 standards, the backup ring maintains seal integrity under pressure cycling and temperature variations.
Installation requires proper orientation and size verification per the aircraft maintenance manual to ensure effective extrusion resistance.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the BACK (P/N ms28774-333)?
The MS28774-333 is a single-turn, scarf-cut backup ring manufactured from PTFE that prevents O-ring extrusion in aircraft hydraulic and pneumatic system glands. This anti-extrusion element installs behind an AS568 O-ring in high-pressure actuators and fluid system components.
What conditions is the ms28774-333 available in?
The ms28774-333 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.
How do I get pricing for the ms28774-333?
The ms28774-333 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.
Do you offer expedited shipping for the ms28774-333?
Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.
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