RING, GASKET BACK-UP (P/N ms28773-10) - New Surplus
P/N: ms28773-10
Category: Gaskets
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 MS28773-10 is a PTFE back-up ring designed to prevent O-ring extrusion in high-pressure hydraulic sealing applications. This packing retainer supports the primary seal by containing it within the gland under elevated pressure conditions. Manufactured from PTFE per MIL-R-8791/SAE AS8791 specifications, the ring features a single-turn, scarf-cut design for proper orientation during installation.
Commonly used in aircraft hydraulic actuators and fluid system components. Install with the scarf-cut facing per the applicable aircraft maintenance manual to ensure proper seal support and prevent extrusion failure.
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, GASKET BACK-UP (P/N ms28773-10)?
The MS28773-10 is a PTFE back-up ring designed to prevent O-ring extrusion in high-pressure hydraulic sealing applications. This packing retainer supports the primary seal by containing it within the gland under elevated pressure conditions.
What material is the ms28773-10 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 RING, GASKET BACK-UP meets aviation specifications for its intended use. Contact us for specific material data.
Can I order the ms28773-10 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 ms28773-10.
What is the shelf life of the ms28773-10?
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 ms28773-10.