Categories: Navy (USN) NAVSEA NSDSA NSDSA is the NAVSEA and SPAWAR activity responsible for the management of technical manuals and technical services. Link to sitensdsa.nmci.navy.mil/Account requiredYes[.mil] required for accessNo NSDSA is the NAVSEA and SPAWAR activity responsible for the management of technical manuals and technical services. Internet Speed Test Army and Air Force Mutual Aid Association Print 13162 Rate this article: 5.0 Tags: informational