UNSPSC 39121118: Transformer, 400 Hz

400 Hz. Power frequencies as high as 400 Hz are used in aircraft, spacecraft, submarines, server rooms for computer power, military equipment, and hand-held machine tools.

UNSPSC 39121118 Transformer, 400 Hz is a Commodity code with minimal recent state and local procurement activity directly aligned to the code's scope. The recent opportunities block contains no active solicitations for 400 Hz transformers or related electrical power conditioning equipment. Instead, the database shows opportunities spanning aviation equipment (helicopter tugs, passenger boarding bridges, aircraft ramps, weather systems, runway lighting), transportation services (charter buses, transit maintenance), airport operations support (hangar doors, access control systems, ground support equipment), and procurement networking events. None of these categories correspond to the code's narrow focus on 400 Hz frequency transformers, which are specialized electrical components used in aircraft power systems, avionics, and ground support infrastructure.

The mismatch between the code's technical scope and the recent opportunities suggests either that 400 Hz transformers are not actively procured through state and local channels in the current market window, or that when acquired, they are tagged under different UNSPSC classifications. State and local buyers seeking 400 Hz transformers would most likely embed them as components within larger procurement categories—such as aircraft ground support systems, airport electrical infrastructure, or aviation maintenance contracts—rather than source them as standalone commodities. If your firm supplies these transformers to aviation or airport operators, monitor opportunities in the broader airport equipment, electrical construction services, or aircraft maintenance support codes rather than this narrow Commodity code. No geographic concentration, issuing-body mix, or representative recent solicitations can be drawn from the available source material.