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. NAVSEA CDMD-OA NAVSUP ERP Solution Portal Print 12780 Rate this article: 5.0 Tags: informational