BACK (P/N ms28774-137) - New Surplus
P/N: ms28774-137
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 | 3 Available |
Product Description
The MS28774-137 is a backup ring (packing retainer) designed to prevent O-ring extrusion in high-pressure hydraulic joints. This elastomeric support ring works alongside primary O-rings in static and reciprocating applications, maintaining seal integrity under differential pressure. Qualified to SAE-AS8791 aerospace standards, the MS28774-137 improves gland stability and extends seal life in hydraulic actuators and fluid system components.
Installation requires proper scarf joint alignment within the specified gland cavity per MS28774 documentation and aircraft maintenance manuals.
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 ms28774-137)?
The MS28774-137 is a backup ring (packing retainer) designed to prevent O-ring extrusion in high-pressure hydraulic joints. This elastomeric support ring works alongside primary O-rings in static and reciprocating applications, maintaining seal integrity under differential pressure.
What conditions is the ms28774-137 available in?
The ms28774-137 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 ms28774-137?
The ms28774-137 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 ms28774-137?
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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