The NAS1149D0332J is an aerospace-standard flat washer used in aircraft structures to distribute load under bolt or screw heads and prevent surface damage on aluminum assemblies. It helps reduce stress concentration, improves clamp load distribution, and protects mating surfaces in vibration-prone environments.

This washer is commonly used in airframe structures, interior installations, brackets, and general aviation hardware where lightweight corrosion-resistant fastening is required. It is typically manufactured from 2024 aluminum alloy with a chemical conversion coating, providing a balance of strength and corrosion resistance for aviation service conditions.

Designed to NAS/MS standards, it is equivalent in function to AN960JD10L in many applications and is widely used in certified aircraft maintenance and OEM assembly work.

Key features include:

NAS1149D0332J aerospace flat washer
100 pcs maintenance pack
Used for load distribution in bolted joints
Protects aluminum and structural surfaces from wear
Compatible with #10 aircraft fasteners
Material: 2024 aluminum alloy
Corrosion-resistant chemical conversion coating
Equivalent to AN960JD10L in many applications
Suitable for airframe and interior assemblies
Direct replacement per NAS/MS aircraft standards