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:
Ed Geisler, Raytheon's newly named Vice President and DDG 1000 program manager, said, The Navy and the DDG 1000 industry team continue to execute flawlessly as we move forward to Mission System Equipment Production Readiness Reviews and completion of the Flight 1 Software.