The MS28775-141 is an aerospace-standard O-ring sealing element (packing) used in aircraft hydraulic, fuel, lubrication, and pneumatic systems. It provides a reliable pressure-tight seal between mating components such as fittings, valve bodies, pumps, and actuator housings.

This O-ring is designed for dependable sealing performance under vibration, pressure cycling, and wide temperature variations typical of aviation environments. It is suitable for both static sealing applications and light dynamic interfaces depending on system design.

Manufactured to MS specifications, it is typically made from FKM (Viton-type) or equivalent aerospace-grade elastomer, offering strong resistance to aviation fluids, hydraulic oils, fuels, and environmental aging.

Key features include:

MS28775-141 aerospace O-ring seal
Used in hydraulic, fuel, and pneumatic systems
Provides reliable leak-proof sealing
Resistant to aviation fluids and oils
High pressure and temperature capability
Suitable for vibration and cyclic loads
FKM (Viton-type) elastomer construction
Used in valves, fittings, pumps, and actuators
Standard MS aircraft sealing component
Direct replacement per MS aerospace hardware standards