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:
* Identifying, ordering, stocking and issuing repair parts, clothing and general supplies utilizing the Navy Supply System. They are responsible for proper follow up and receipt procedures, warehouse layout and storage, and the proper operation of the Government Purchase Card Program utilizing open market purchasing.