P/N: MS28775-225
Category: O-Rings & Packings
Flat-rate shipping. Choose Ground or a faster service at checkout.
Flat-rate shipping covers most parts. If your order turns out to need freight or special handling, we'll contact you with the updated shipping cost before it ships. You can pay the difference or cancel for a full refund. International buyers pay any duties and import taxes.
| Condition | Price | Stock |
|---|---|---|
| New | $0.40 | 9 Available |
| New Surplus | $0.40 | 88 Available |
The MS28775-225 is an acrylonitrile-butadiene rubber (NBR) O-ring packing manufactured to Military Standard MS28775 specifications. Molded at 75 Shore A hardness, this seal provides static and dynamic sealing in aircraft hydraulic systems. Commonly installed in Cleveland 30-146 brake assemblies, the O-ring fits into precision glands where it prevents fluid leakage under pressure and temperature cycling.
Installation requires lubrication with compatible system fluid and positioning per the aircraft maintenance manual or illustrated parts catalog. The MS28775-225 maintains pressure integrity in brake actuators and hydraulic control circuits across general and corporate aviation platforms.
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.
The MS28775-225 is an acrylonitrile-butadiene rubber (NBR) O-ring packing manufactured to Military Standard MS28775 specifications. Molded at 75 Shore A hardness, this seal provides static and dynamic sealing in aircraft hydraulic systems.
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.
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 MS28775-225.
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 MS28775-225.