The 105090-A-032-12K Washer is a precision aerospace flat washer used in aircraft structural, mechanical, and system assembly applications. It is designed to provide controlled load distribution, spacing, and surface protection in fastening points exposed to vibration and operational stress.

The “K” designation typically indicates a thicker or heavy-duty variant compared to lighter “J” types, making it suitable for applications where increased load-bearing capacity and structural support are required while still maintaining precise aerospace tolerances.

Its primary features include:
Aerospace-grade flat washer for aircraft applications
“K” heavy-duty configuration for higher load applications
Helps distribute fastener load and reduce surface wear
Suitable for structural and mechanical aircraft assemblies
Manufactured to aerospace/OEM specifications
Designed for vibration and fatigue resistance
Durable metal construction for long service life
Compatible with aircraft maintenance and assembly systems

Washers like the 105090-A-032-12K are widely used in aviation systems because they provide reliable load distribution, support structural integrity under stress, and ensure long-term durability in critical aircraft assemblies.