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:
In the case of maintenance activities, this request starts at. O-level, I-level, and D-level maintenance and flows to a designated point in the Supply System. 9.1.1.3 The Uniform Material Movement and Issue Priority System (UMMIPS) assigns a Force Activity. Designator (FAD) to all activities in the Navy establishment for determining priorities for material support. Instructions for using the material priority system and assigning FADs are published in OPNAVINST 4614.1.