RETAINER,PACKING (P/N ms28782-5) - New Surplus
P/N: ms28782-5
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 | 70 Available |
Product Description
The MS28782-5 is a PTFE backup ring (packing retainer) conforming to SAE AS8791/MIL-R-8791 specifications. This scarf-cut ring prevents extrusion of O-ring seals in hydraulic and pneumatic system components. Installed in gland grooves adjacent to the primary sealing element, it protects packings from pressure-induced deformation during operation.
Commonly used in actuators, cylinders, and other fluid power assemblies on aircraft. Installation requires selecting the correct dash size and following component maintenance manual procedures for proper positioning and torque.
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 ms28782-5)?
The MS28782-5 is a PTFE backup ring (packing retainer) conforming to SAE AS8791/MIL-R-8791 specifications. This scarf-cut ring prevents extrusion of O-ring seals in hydraulic and pneumatic system components.
What material is the ms28782-5 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 ms28782-5 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 ms28782-5.
What is the shelf life of the ms28782-5?
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 ms28782-5.