PACKING (P/N ms28774-222) - New Surplus, New
P/N: ms28774-222
Category: O-Rings & Packings
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Available Inventory
| Condition | Price | Stock |
|---|---|---|
| New Surplus | $4.00 | 10 Available |
| New | $4.00 | 2 Available |
Product Description
The MS28774-222 is a PTFE back-up ring (packing retainer) conforming to Military Standard MS28774. This component supports an elastomeric O-ring, providing extrusion resistance under hydraulic pressure in aircraft fluid system interfaces. The dash number -222 designates the standard size for common applications.
Install the back-up ring adjacent to the primary O-ring with the scarf cut oriented per maintenance manual specifications. Used in aircraft hydraulic fittings to stabilize seals and prevent gap extrusion during operation.
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 PACKING (P/N ms28774-222)?
The MS28774-222 is a PTFE back-up ring (packing retainer) conforming to Military Standard MS28774. This component supports an elastomeric O-ring, providing extrusion resistance under hydraulic pressure in aircraft fluid system interfaces.
What material is the ms28774-222 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 PACKING meets aviation specifications for its intended use. Contact us for specific material data.
Can I order the ms28774-222 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 ms28774-222.
What is the shelf life of the ms28774-222?
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 ms28774-222.
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