RING BU (P/N ms28774-212) - As Removed, New Surplus
P/N: ms28774-212
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 |
|---|---|
| As Removed | 12 Available |
| New Surplus | 43 Available |
Product Description
The MS28774-212 is a PTFE backup ring with a scarf-cut, rectangular cross-section conforming to Military Standard MS28774. This ring sits behind an O-ring in hydraulic and pneumatic system glands, preventing extrusion under high pressure per SAE-AS8791 specifications. The backup ring stabilizes the seal and extends component life in aircraft fluid systems.
Installation requires positioning the ring adjacent to the O-ring per the component manufacturer's specification or aircraft maintenance manual. Commonly used in landing gear, flight control, and engine system interfaces.
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 RING BU (P/N ms28774-212)?
The MS28774-212 is a PTFE backup ring with a scarf-cut, rectangular cross-section conforming to Military Standard MS28774. This ring sits behind an O-ring in hydraulic and pneumatic system glands, preventing extrusion under high pressure per SAE-AS8791 specifications.
What conditions is the ms28774-212 available in?
The ms28774-212 is currently available in the following conditions: As Removed, New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.
How do I get pricing for the ms28774-212?
The ms28774-212 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 ms28774-212?
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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