The NAS1149F0632P is a military-standard flat washer used in aircraft structural and mechanical assemblies to distribute load under bolt or screw heads and nuts. It helps prevent surface damage, reduces stress concentration, and improves the overall durability of bolted joints in high-vibration environments.

This washer is part of the NAS1149 series and is equivalent to AN960-type washers in many applications. It is commonly used in airframe structures, brackets, equipment mounting, and general aviation maintenance where reliable load distribution and corrosion resistance are required.

Manufactured from cadmium-plated steel, it provides good corrosion resistance and long service life in aviation environments exposed to moisture, vibration, and temperature variations. The “0632” specification corresponds to use with 3/8-inch fasteners with standardized dimensional tolerances for aerospace applications.

Key features include:

NAS1149F0632P aerospace flat washer
100 pcs maintenance pack
Used for load distribution under fasteners
Protects surfaces from wear and deformation
Compatible with 3/8-inch aerospace bolts/screws
Cadmium-plated steel construction
Corrosion-resistant aviation finish
Equivalent to AN960 series in many applications
Suitable for vibration and cyclic load environments
Direct replacement per NAS/MS aircraft standards