The BACK-UP RING (MS28773-128) is a precision sealing component designed to prevent extrusion and deformation of O-rings in high-pressure applications. It is commonly used in hydraulic and pneumatic systems to enhance seal reliability and extend component lifespan. Ideal for use in aerospace, industrial machinery, and fluid power systems, this backup ring ensures optimal sealing performance under demanding conditions.This component is manufactured to the applicable MS, AN, or NAS specification, ensuring compliance with recognized military and aerospace dimensional, material, and performance requirements. Material certifications, Certificates of Conformance (CoC), and traceability are available where applicable.
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