Establishments primarily engaged in manufacturing machinery, equipment, and components for general industrial use, and for which no special classification is provided. Machine shops primarily engaged in producing machine and equipment parts, usually on a job or order basis, are classified in Industry 3599.

• Altitude testing chambers
• Baling machines for scrap metal, paper, and similar materials
• Blast cleaning equipment, dustless: except metalworking
• Brake burnishing and washing machines
• Bridge and gate machinery, hydraulic
• Burnishing and washing machines, brake
• Centrifuges, industrial
• Cremating ovens
• Driers and reel, firehose
• Filter elements, fluid: hydraulic line
• Filters, fluid, general line industrial: except internal combustion
• Filters, pipeline
• Firefighting apparatus, except automotive and chemical
• Firehose, except rubber
• Gas producers (machinery)
• Gas separators (machinery)
• Generators, gas
• Generators: steam, liquid oxygen, and nitrogen
• Heaters, swimming pool: electric
• Hose, fire: except rubber
• Ice crushers, except household
• Jacks, hydraulic: for general industrial use
• Lubricating systems, centralized
• Lubrication equipment, industrial
• Lubrication machinery, automatic
• Ordnance testing chambers
• Ovens, surveillance: for aging and testing powder
• Powder testing chambers
• Presses, metal baling
• Purifiers, centrifugal
• Reels and racks, firehose
• Robots for general industrial use
• Screening and sifting machines for general industrial use
• Screws, jack
• Separators for steam, gas, vapor, and air (machinery)
• Sifting and screening machines for general industrial use
• Sprinkler systems, fire: automatic
• Steam separators (machinery)
• Strainers, pipeline
• Temperature testing chambers
• Testing chambers for altitude, temperature, ordnance, and power
• Vapor separators (machinery)