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. Army Property Defense Occupational and Environmental Health Readiness System DOEHRS Print 15474 Rate this article: 5.0 Tags: informational