TEFLON BACKUP RING (P/N ms28774-344) - New Surplus
P/N: ms28774-344
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 | 34 Available |
Product Description
The MS28774-344 is a PTFE backup ring with scarf-cut design for use alongside O-rings in aerospace fluid systems. This backup ring prevents seal extrusion in hydraulic and pneumatic glands operating at elevated pressures. Installed in aircraft hydraulic actuators and similar components, it stabilizes the O-ring and maintains seal integrity during high-pressure cycles.
The ring conforms to MS28774 specifications and works with glands built per MIL-G-5514/MIL-P-5514 standards. Installation pairs the backup ring with the specified O-ring size in the component gland, following the applicable maintenance manual and MS standard requirements.
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 TEFLON BACKUP RING (P/N ms28774-344)?
The MS28774-344 is a PTFE backup ring with scarf-cut design for use alongside O-rings in aerospace fluid systems. This backup ring prevents seal extrusion in hydraulic and pneumatic glands operating at elevated pressures.
What material is the ms28774-344 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 TEFLON BACKUP RING meets aviation specifications for its intended use. Contact us for specific material data.
Can I order the ms28774-344 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 ms28774-344.
What is the shelf life of the ms28774-344?
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 ms28774-344.
Related Seals
- SEALING, TURBO INTAKE – P/N 02-7240-05105r1
- SEAL – P/N cec6001-114-55
- SEAL – P/N 212-51142-05-1a01
- SEAL FITTING 1" – P/N 04-05016
- PACKING – P/N M25988/3-336
- SEAL – P/N s2l226
- SEAL-DOOR INSTAL – P/N 36-420010-25
- SEAL – P/N 120-104-4
- 05-08-03 SEAL – P/N 51129-000
- SEAL – P/N s30630-338n
- SEAL RING – P/N 20X24CSN029310.3
- PACKING, PREFORMED – P/N 2-038n497-70