The AN970-5 Washer is an aircraft-grade large-area flat washer designed to distribute load over a wider surface than standard washers. It is commonly used in aviation structural and wood/soft-material applications where additional bearing surface is required to prevent pull-through, crushing, or localized stress around fasteners.

Manufactured to AN (Army-Navy) aerospace specifications, this washer is widely used in general aviation aircraft structures, engine mounts, and airframe attachment points. It is supplied in a 25-piece pack for maintenance, repair, and overhaul use.

Its primary features include:
Manufactured to AN970 aerospace standard specifications
Large outside diameter for increased load distribution
Helps prevent material deformation and pull-through
Suitable for aircraft structural and engine mounting applications
Compatible with wood, composite, and soft material assemblies
Durable steel construction for aviation environments
Packaged in a 25-piece maintenance set
Commonly used in general aviation airframe repairs

Washers like the AN970-5 are widely used in aircraft construction and maintenance because they provide strong load distribution, improve fastening stability, and protect softer structural materials from damage under bolt tension and vibration.