A: Absolutely. SSDs have no moving parts, but the spacers help center the drive in a 3.5" adapter.
NAS42 spacers are specialized sleeve spacers primarily used in aerospace and defense assemblies to maintain precise clearance between components. Governed by the and maintained by the Aerospace Industries Association (AIA), these unthreaded round spacers are designed specifically for use with solid rivets , whereas the similar NAS43 series is used with screws and bolts. Key Specifications and Design nas42 spacers
To understand the importance of the spacer, one must first understand the context of its specification. "NAS" stands for National Aerospace Standard. These standards are managed by the Aerospace Industries Association (AIA) and represent some of the most rigorous quality and dimensional requirements in the manufacturing world. A: Absolutely
The primary function of a NAS42 spacer is to manage load distribution and geometry. In many assemblies, particularly those involving sheet metal or composite panels, fastening two surfaces directly together can cause deformation. If a bolt is torqued down on thin sheet metal without a spacer, the metal may dimple or crush. The NAS42 spacer acts as a rigid column, transferring the clamping force of the bolt through the sleeve rather than the workpiece, thereby preserving the flatness of the attached materials. Governed by the and maintained by the Aerospace
NAS42 spacers are available in two primary materials, each identified by a specific code in the part number:
Indicates the outside diameter (e.g., -4 for 1/4" OD).
Additionally, NAS42 spacers are essential for electrical isolation and thermal management. In avionics bays, spacers are used to mount electronic rack units, creating airflow gaps to prevent overheating. In some configurations, non-conductive sleeves or specific metal pairings are used to prevent galvanic corrosion between dissimilar metals—a common issue in airframes constructed from aluminum and carbon fiber.