UNSPSC 39121119: Motor-Alternator, 400 Hz

400 Hz alternators are especially designed for aviation Ground Power Units (GPU) that are driven by diesel engines to power aircraft while grounded for boarding and maintenance.

UNSPSC 39121119 Motor-Alternator, 400 Hz is a Commodity code with no recent state and local procurement activity directly related to the code's scope. The recent opportunities block contains no solicitations for 400 Hz motor-alternators or related electrical generation equipment. The opportunities posted across the window span airport ground support equipment (helicopter tugs, aircraft boarding ramps, passenger boarding bridges), airport infrastructure and systems (weather observation systems, access control, runway lighting, terminal ramp sweepers), transportation services (charter buses, drone displays), maintenance and repair services (hangar doors, aircraft systems), and event participation (trade shows, vendor forums). None of these align with the nominal scope of 400 Hz alternator procurement. The issuing bodies represented include state departments, county purchasing offices, city aviation and transportation departments, airport authorities and commissions, and special districts across Texas, Florida, Georgia, New Hampshire, Kentucky, New Mexico, New Jersey, and elsewhere.

Without relevant recent solicitations under this code, no reliable signal emerges regarding what state and local governments are actually purchasing as motor-alternators at 400 Hz frequency, which issuing bodies are active buyers, or where procurement activity is concentrated. Practitioners should monitor this code for future activity or consult archived opportunities to establish baseline demand. The mismatch between the code's technical scope and the recent opportunity sample suggests either that 400 Hz alternators are procured infrequently under this code designation, that they are bundled into larger systems procurements tagged differently, or that the recent sample does not capture relevant activity.