ORING (P/N ms28778-4) - New Surplus
P/N: ms28778-4
Category: O-Rings
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 | 127 Available |
Product Description
The MS28778-4 is a nitrile rubber O-ring conforming to MS28778 specifications for straight-thread tube fitting bosses. Manufactured per MIL-P-5510/AMS-P-5510 standards, this preformed seal operates in hydraulic systems across aerospace applications. Sized for 1/4-inch tube connections, it prevents fluid leakage at fitting interfaces by creating a pressure-tight seal.
Installation requires compatible lubricant and torque values specified in the aircraft or component maintenance manual. The nitrile material provides reliable performance across typical hydraulic system temperature and pressure ranges.
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 ORING (P/N ms28778-4)?
The MS28778-4 is a nitrile rubber O-ring conforming to MS28778 specifications for straight-thread tube fitting bosses. Manufactured per MIL-P-5510/AMS-P-5510 standards, this preformed seal operates in hydraulic systems across aerospace applications.
What material is the ms28778-4 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 ORING meets aviation specifications for its intended use. Contact us for specific material data.
Can I order the ms28778-4 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 ms28778-4.
What is the shelf life of the ms28778-4?
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 ms28778-4.
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