The $700m agreement will be executed by the US Army Contracting Command-New Jersey on behalf of the Department of Defense Ordnance Technology Consortium (DOTC). It renews and extends two previous agreements, which had a combined value of $1.22bn.
The NAC is made up of more than 250 companies and academic institutions, is managed by SCRA, and represents the industrial and academic component of DOTC, both of which were established to facilitate collaborative ordnance technology development and prototyping.
NAC executive committee chairman Gary Schneider said: "The most recent $700 million agreement is evidence of the continued success of the NAC and DOTC Enterprise.
"Over $1bn have been awarded to our NAC member organisations to develop innovative armament and ordnance technology solutions that are crucial to helping support our American warfighters."
SCRA applied R&D president Chris Van Metre said: "This agreement allows us to continue to fulfil our ultimate mission, supporting the warfighters serving our country each day."
NAC focuses on armament and ordnance programmes, shipbuilding and maritime technologies, composites and advanced materials, manufacturing, software applications, agency interoperability, as well as homeland security and vertical lift.
The consortia also hosts an Annual Membership Meeting each year, which provides the government, industry and academia with an opportunity to meet and exchange information relating to the research, development and deployment of critical armament and ordnance technology.
Mr Van Metre said: "The NAC Annual meeting is a great example of collaboration between government, industry and academia early in the research and development process, which results in better technology solutions."