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:
The Space and Naval Warfare Systems Command (SPAWAR), based in San Diego, is an Echelon II organization within the United States Navy and is the Navy's technical authority and acquisition command for C4ISR (Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance), business information technology and space systems.