The 105090-A032-10J Washer is a precision aerospace flat washer used in aircraft structural, mechanical, and system assembly applications. The “J” designation typically indicates a reduced-thickness or light-profile washer variant, designed for installations where limited clearance and weight optimization are important.

This washer is used to distribute load under fasteners, reduce surface wear, and maintain proper alignment in high-vibration aerospace environments. It is commonly found in certified aircraft maintenance and OEM assembly specifications.

Its primary features include:
Aerospace-grade flat washer for aircraft applications
“J” thin/light-profile configuration for tight-clearance installations
Helps distribute fastener load and reduce surface damage
Suitable for structural and mechanical aircraft assemblies
Manufactured to aerospace/OEM specifications
Designed for vibration-resistant environments
Durable metal construction for long service life
Compatible with aircraft maintenance and assembly systems

Washers like the 105090-A032-10J are widely used in aviation because they support precise fastening requirements, reduce weight where needed, and help maintain structural integrity in compact or high-density aircraft assemblies.