BCKUP RING (P/N ms28774-011) - New Surplus
P/N: ms28774-011
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 | 45 Available |
Product Description
The ms28774-011 is a backup ring that prevents O-ring extrusion under hydraulic pressure. This single-turn, scarf-cut seal support conforms to MS28774 specifications for aerospace applications. Installed alongside primary O-rings in hydraulic actuators and valve gland grooves, the backup ring resists gap extrusion during high-pressure cycles.
Proper installation requires correct cut orientation per maintenance documentation and dash-number sizing verification for reliable sealing performance.
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 BCKUP RING (P/N ms28774-011)?
The ms28774-011 is a backup ring that prevents O-ring extrusion under hydraulic pressure. This single-turn, scarf-cut seal support conforms to MS28774 specifications for aerospace applications.
What conditions is the ms28774-011 available in?
The ms28774-011 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 ms28774-011?
The ms28774-011 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 ms28774-011?
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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