NAICS 335312 - Motor and Generator Manufacturing
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What is NAICS 335312
NAICS code 335312 pertains to Motor and Generator Manufacturing, encompassing establishments primarily engaged in producing electric motors (excluding internal combustion engine starting motors), power generators (excluding battery charging alternators for internal combustion engines), and motor generator sets (excluding turbine generator set units). This industry also includes the factory-based rewinding of armatures. Businesses operating in this sector range from manufacturers of small fractional horsepower motors to large industrial motors and generators used across various industries. These companies often provide critical components that power equipment, machinery, and infrastructure essential for both civilian and military applications. Government agencies contract with these manufacturers to ensure a reliable supply of high-quality electric motors and generators that meet stringent performance, safety, and durability standards.
Industry Classification for NAICS 335312
This U.S. industry comprises establishments primarily engaged in manufacturing electric motors (except internal combustion engine starting motors), power generators (except battery charging alternators for internal combustion engines), and motor generator sets (except turbine generator set units). This industry includes establishments rewinding armatures on a factory basis.
Breakdown for NAICS 335312
- Manufacturing electric motors except internal combustion engine starting motors.
- Producing power generators excluding battery charging alternators for combustion engines.
- Factory-based rewinding of armatures is included within this industry.
- Excludes manufacturing turbine generator set units.
- Covered businesses range from small motor producers to large industrial generator manufacturers.
- Typical government contracts involve equipment for defense, energy, and infrastructure sectors.
Included Activities for NAICS 335312
- Designing and manufacturing electric motors for industrial and military use.
- Producing power generators for commercial and government applications.
- Rewinding and refurbishing armatures in a factory setting.
- Testing and quality assurance of motor and generator units.
- Customizing motor and generator sets to meet specific government specifications.
- Providing maintenance and repair services for electric motors and generators.
- Supplying replacement parts for electric motors and power generators.
- Collaborating on research and development for energy-efficient motor technologies.
Business Types for NAICS 335312
- Electric motor manufacturers
- Power generator manufacturers
- Motor generator set producers
- Armature rewinding service providers
- Industrial equipment suppliers
- Specialized military equipment contractors
Subcategories for NAICS 335312
- Armature rewinding on a factory basis
- Armatures, industrial, manufacturing
- Coils for motors and generators manufacturing
- Collector rings for motors and generators manufacturing
- Commutators, electric motor, manufacturing
- Condensers, synchronous, electric, manufacturing
- Converters, phase and rotary, electrical equipment, manufacturing
- Dynamos, electric (except automotive), manufacturing
- Dynamotors manufacturing
- Exciter assemblies, motor and generator, manufacturing
- Fractional horsepower electric motors manufacturing
- Frequency converters (i.e., electric generators) manufacturing
- Generating apparatus and parts, electrical (except internal combustion engine and welding), manufacturing
- Generator sets, prime mover (except turbine generator sets), manufacturing
- Generators and sets, electric (except internal combustion engine, welding, turbine generator sets), manufacturing
- Generators for gas-electric and oil-electric vehicles, manufacturing
- Generators for storage battery chargers (except internal combustion engine and aircraft) manufacturing
- Ground Power Units (GPU) manufacturing
- Integral horsepower electric motors manufacturing
- Inverters, rotating electrical, manufacturing
- Land transportation motors and generators manufacturing
- Motor generator sets (except automotive, turbine generator sets) manufacturing
- Motors, electric (except engine starting motors, gearmotors, outboard), manufacturing
- Phase converters (i.e., electrical equipment) manufacturing
- Power generators manufacturing
- Prime mover generator sets (except turbine generator sets) manufacturing
- Railway motors and control equipment, electric, manufacturing
- Resolvers manufacturing
- Rotor retainers and housings manufacturing
- Rotors (i.e., for motors) manufacturing
- Servomotors manufacturing
- Slip rings for motors and generators manufacturing
- Stators for motors manufacturing
- Storage battery chargers (except internal combustion engine-type) manufacturing
- Synchronous condensers and timing motors, electric, manufacturing
- Synchronous motors manufacturing
- Timing motors, synchronous, electric, manufacturing
- Torque motors, electric, manufacturing
Government Buyers for NAICS 335312
Government agencies that commonly procure products and services under NAICS code 335312 include the Department of Defense, Department of Energy, Department of Transportation, and various federal and state infrastructure and utility agencies. These agencies require electric motors and generators for a wide range of applications such as military vehicles, power generation plants, public transportation systems, and critical infrastructure projects. The reliability and efficiency of these components are vital for mission-critical operations, making government contracts in this sector strategically important. Procurement often focuses on customized or ruggedized motors and generators that meet specific technical specifications and regulatory requirements.
Contract Types & Procurement for NAICS 335312
Contracts in this NAICS sector typically include firm-fixed-price, indefinite delivery/indefinite quantity (IDIQ), and cost-plus contracts, reflecting the diverse needs of government clients. Procurement methods often involve competitive bidding, requests for proposals (RFPs), and sometimes sole-source awards for specialized technologies. Contract values can vary widely, from small-scale orders for replacement motors to multi-million-dollar contracts for large industrial generators or motor generator sets. Long-term maintenance and rewinding contracts are also common, ensuring ongoing support and reliability of equipment in government facilities and fleets.
Details for NAICS 335312
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