What defines a low density MOS within an organization?

A low density Military Occupational Specialty (MOS) is characterized as one that is essential for certain operations or capabilities but is only filled by a small number of personnel within the organization. This uniqueness often means that while the skills associated with the MOS are critical for mission success, they are not required in large numbers compared to more common specialties. The focus here is on the operational need balanced against the limited number of soldiers who have that MOS, which points to its specialized nature within the overall force structure.

In contrast, a MOS that is not required or unrelated to unit missions would be considered unnecessary for the operational effectiveness of the unit, thus not fitting the definition of a low density MOS. Similarly, a MOS that applies to many soldiers indicates it is prevalent and widely utilized across the organization, again diverging from the concept of low density.