RETAINER,PACKING (P/N ms28774-026) - New Surplus
P/N: ms28774-026
Category: Seals
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 | 8 Available |
Product Description
The ms28774-026 is a PTFE back-up retainer ring that prevents O-ring extrusion in pressurized hydraulic and pneumatic glands. This polytetrafluoroethylene (PTFE) ring supports the O-ring seal by containing it against high pressure, maintaining system integrity in aircraft fluid systems. Manufactured to Military Standard MS28774 and cross-referenced to AS8791/1-026, the retainer installs adjacent to the O-ring within the gland cavity.
Common in landing gear actuators, engine fuel systems, and hydraulic control components where pressure cycles demand reliable seal retention.
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 RETAINER,PACKING (P/N ms28774-026)?
The ms28774-026 is a PTFE back-up retainer ring that prevents O-ring extrusion in pressurized hydraulic and pneumatic glands. This polytetrafluoroethylene (PTFE) ring supports the O-ring seal by containing it against high pressure, maintaining system integrity in aircraft fluid systems.
What material is the ms28774-026 made from?
Aircraft seals and O-rings are manufactured from various elastomers including nitrile (Buna-N), fluorocarbon (Viton), silicone, and PTFE depending on the application. The RETAINER,PACKING meets aviation specifications for its intended use. Contact us for specific material data.
Can I order the ms28774-026 in bulk quantities?
Yes, we stock seals and gaskets in quantity and offer bulk pricing. Submit a Request for Quote (RFQ) for volume orders, or call (904) 998-9101 for immediate quantity availability on the ms28774-026.
What is the shelf life of the ms28774-026?
Elastomeric seals have manufacturer-specified shelf lives that vary by material and storage conditions. We follow industry standards for cure date tracking and proper climate-controlled storage. Contact us for shelf life details on the ms28774-026.