What is indicated by the 5th and 6th digits of an NSN?

The 5th and 6th digits of a National Stock Number (NSN) indicate the National Codification Bureau (NCB) that was responsible for assigning the NSN to a particular item. The NCB is integral to the logistics system, as it helps to ensure that items are correctly identified and cataloged, facilitating efficient inventory management and supply chain processes. This coding system is essential for maintaining uniformity and consistency in identifying items across different services and platforms within the military.

The other options focus on different aspects of the NSN or broader logistics systems but do not pertain to the specific role of the 5th and 6th digits. Understanding the significance of these digits helps logistics specialists quickly ascertain which organization issued the NSN and aids in tracking and managing supplies effectively.