M198 Howitzer (155MM)

The M198 Howitzer (155MM) is a Major Defense Acquisition Program (MDAP) managed by the Department of Defense under the Major Capability Acquisition pathway. This towed artillery system requires ongoing procurement of components, spare parts, and support equipment to maintain operational readiness. The program encompasses the acquisition of mechanical assemblies, optical systems, electronic components, and specialized tools used in the operation and maintenance of the weapons platform.

Contract awards under this program typically range from small purchases of a few thousand dollars for individual components to multi-million dollar orders for major assemblies and systems. Notable contractors include Seiler Instrument And Manufacturing Company for optical and alignment devices, HDT Expeditionary Systems for environmental control systems, and G.S.E. Dynamics for cannon components. The Department of the Army Materiel Command, particularly through TACOM Life Cycle Management Command and Army Contracting Command Warren, serves as the primary contracting authority. Many contracts are designated as Total Small Business set-asides, with firm fixed price being the predominant pricing structure. Contract performance periods generally range from several months to two years, with work performed across various locations including St. Louis, Missouri; Hauppauge, New York; and Warren, Michigan. The program utilizes various contract types including Purchase Orders, Delivery Orders, and Definitive Contracts, with values ranging from under $10,000 for small components to over $45 million for major system upgrades.