The vibration isolation curb shall be air and weather tight using an elastomeric seal, which is attached to the upper support frame with a galvanized steel clip. The seal shall extend down past the wood nailer of the lower support assembly and flash over the roof material at the wood nailer on the lower support curb.
NSMA stands for Navy Systems Management Activity (US DoD) Suggest new definition This definition appears very rarely and is found in the following Acronym Finder categories:
NAVSEA's primary objective is to engineer, build and support the U.S. Navy's fleet of ships and its combat systems. NAVSEA accounts for one quarter of the Navy's entire budget, with more than 150 acquisition programs under its oversight.he Naval Sea Systems Command was established on 1 July 1974 with the merger of the Naval Ship Systems Command with the Naval Ordnance Systems Command. The Naval Ship Systems Command was established in 1966 replacing the Navy's Bureau of Ships (BuShips).