RING (P/N MS28774-349) - New Surplus
P/N: MS28774-349
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 MS28774-349 is a PTFE back-up ring (packing retainer) conforming to Military Standard MS28774. This scarf-cut ring prevents O-ring extrusion in high-pressure hydraulic glands, installed on the low-pressure side per MIL-G-5514 and MIL-P-5514 specifications. Designed to support dash-349 O-rings in aircraft hydraulic systems and subsystems.
Installation requires careful positioning in the gland and verification of IPC compatibility before assembly. Critical for maintaining seal integrity under pressure cycling in corporate and general aviation hydraulic circuits.
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 (P/N MS28774-349)?
The MS28774-349 is a PTFE back-up ring (packing retainer) conforming to Military Standard MS28774. This scarf-cut ring prevents O-ring extrusion in high-pressure hydraulic glands, installed on the low-pressure side per MIL-G-5514 and MIL-P-5514 specifications.
What conditions is the MS28774-349 available in?
The MS28774-349 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 MS28774-349?
The MS28774-349 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 MS28774-349?
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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