The MS35338-44 Lock Washer is a military-standard split lock washer designed for use in aerospace, aviation, and industrial fastening applications. With a nominal 0.25-inch diameter size class, it is used to help prevent loosening of fasteners such as bolts and nuts under vibration, thermal cycling, and mechanical stress.

The split design creates spring tension between the fastener and the mating surface, helping maintain preload and improve joint security in aircraft structures, engines, and mechanical assemblies. This part is commonly supplied in bulk packaging of 100 pieces for maintenance, repair, and overhaul (MRO) operations.

Its primary features include:
Manufactured to MS35338 military aerospace standards
Split lock washer design for anti-loosening performance
Designed for ~0.25 inch fastener applications
Helps maintain clamping force under vibration and load
Suitable for aircraft structural and mechanical assemblies
Steel construction for strength and durability
Corrosion-resistant finish depending on specification variant
Packaged in a 100-piece maintenance set

Washers like the MS35338-44 are widely used in aviation systems because they help ensure fastener reliability, reduce loosening risk, and maintain mechanical integrity in high-vibration operating environments.