National Defense Corporation

National Defense Corporation (NDC), owned by National Presto Industries, Inc., Eau Claire Wisconsin, was restructured in 2014 to provide a consolidation point for its Defense segment companies, which are focused on our Nation’s security and defense. The four companies included under the NDC structure are AMTEC Corporation; Amron, a division of AMTEC Corporation; Tech Ord, a division of AMTEC Corporation; and Spectra Technologies, LLC. Consolidation under National Defense Corporation benefits our customers and suppliers by providing a strategic and synergistic approach for execution of our existing business and ensures we continue to provide industry leading, high quality, effective products for the security and defense of our Nation.


Prime Contractor to the U.S. Army & International Allies for 40mm Ammunition & Fuzing. Assembly of Mechanical Devices to Defense Contractors.


Produces Full Load, Assembly, & Pack Services, Ordnance Manufacturing, Warheads, Grenades, Ammunition, Demolition Products & Ordnance Design, Testing & General “Work for Others” Manufacturing Services.


World’s Leader in the Production of Medium Caliber Cartridge Cases (Brass, Aluminum, & Steel). Precision Defense Components, Including Warhead Bodies.

Tech Ord

Leading Manufacturer of Detonators, Booster Pellets, Release Cartridges, & Other Military Energetic Devices.
Only Qualified Producer of Lead Azide in the United States.

NDC will have representatives at these upcoming events:

September 20th – 2021 – NDIA Picatinny Chapter, Jim Shields Memorial Golf Event
October 11-13th – 2021 – AUSA Annual Meeting, Washington DC, Booth 833
October 18-21st – 2021 – NDIA Future Force Capabilities Conference, Columbus, GA



Eau Claire, Wisconsin (April 1, 2021) – National Presto Industries, Inc. (NYSE: NPK) announced today that on March 30, 2021, AMTEC Corporation, its wholly-owned subsidiary, received a $102.1 million option award under year five (Government Fiscal Year (FY) 2021) of AMTEC’s current five-year 40mm systems contract with the Department of the Army. The option award is for high velocity training cartridges, with deliveries scheduled to begin in mid-2021 and continue over multiple years.

National Presto Industries, Inc. operates in three business segments. The Housewares/Small Appliance segment designs and sells small household appliances and pressure cookers under the PRESTO® brand name. The segment is recognized as an innovator of new products. The Defense segment manufactures a variety of products, including medium caliber training and tactical ammunition, energetic ordnance items, fuzes, and cartridge cases. The Safety segment currently consists of two startup companies. The first is Rusoh, Inc., which designs and markets the Rusoh® Eliminator® fire extinguisher, the first owner-maintained fire extinguisher. The second is OneEvent Technologies, Inc. It offers systems that provide early warning of conditions that, if not corrected, would cause significant losses.

This release contains “forward looking statements” made pursuant to the safe harbor provision of the Private Securities Litigation Reform Act of 1995 that are subject to certain risks and uncertainties, as well as assumptions, that could cause actual results to differ materially from historical results and those presently anticipated or projected. In addition to the factors discussed above, other important risk factors are delineated in the Company’s various SEC

Proud to be members of the following organizations

The Munitions Industrial Base Task Force (MIBTF) is a trade association of U.S. munitions manufacturers, and currently has 16 member companies The MIBTF works to make sure there is adequate funding and policies to sustain a responsive, capable U.S. munitions industrial base to develop, produce, and support superior munitions for the U.S. and is allies.

The National Defense Industrial Association (NDIA) is America’s leading Defense Industry association promoting national security.

​The Association of the United States Army is a private, non-profit organization that acts primarily as an advocacy group for the United States Army. Founded in 1950, it has 125 chapters worldwide.

​The Department of Defense Ordnance Technology Consortium (DOTC) was commissioned by the Under Secretary of Defense for Acquisition, Technology and Logistics as a DoD initiative. The goal was to facilitate collaborative Government, Industry and Academic ordnance technology development and prototyping. Initially in 2000 the National Armaments Consortium (NAC) was partnered with the Army’s Warheads and Energetics Technology Center, or WETC, located at Picatinny Arsenal in New Jersey. Shortly after the NAC/WETC partnership was forged, the NAC expanded its role and became the industrial/academic component of the newly formed DOTC when it was stood up as a purple organization in December 2002.

Contact Information

National Defense Corporation
4230 Capital Circle Dr.
Janesville, WI 53546
(608) 752-2699


Hampton Inn
2400 Fulton St.
Janesville, WI
(608) 754-4900
Holiday Inn
3100 Wellington Pl
Janesville, WI
(608) 756-3100