MAYNARD TRADING ESTABLISHMENT

Plumbing, Heating, and Air-Conditioning Contractors

NAICS #23822 | This industry comprises establishments primarily engaged in installing and servicing plumbing, heating, and air-conditioning equipment. Contractors in this industry may provide both parts and labor when performing work. The work performed may include new work, additions, alterations, maintenance, and repairs. Installing electrical controls for HVAC systems--are classified in Industry 238210, Electrical Contractors; and Duct cleaning--are classified in Industry 561790, Other Services to Buildings and Dwellings.

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing

NAICS #3345 |

Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing

NAICS #335122 | This U.S. industry comprises establishments primarily engaged in manufacturing commercial, industrial, and institutional electric lighting fixtures. Manufacturing glassware for commercial, industrial, and institutional electric lighting fixtures--are classified in Industry 32721, Glass and Glass Product Manufacturing; Manufacturing residential electric lighting fixtures--are classified in U.S. Industry 335121, Residential Electric Lighting Fixture Manufacturing; Manufacturing current-carrying wiring devices for lighting fixtures--are classified in U.S. Industry 335931, Current-Carrying Wiring Device Manufacturing; Manufacturing vehicular lighting fixtures--are classified in U.S. Industry 336321, Vehicular Lighting Equipment Manufacturing; Manufacturing electric light bulbs, tubes, and parts--are classified in Industry 335110, Electric Lamp Bulb and Part Manufacturing; and Manufacturing other lighting fixtures, such as street lights, flashlights, and nonelectric lighting equipment,--are classified in U.S. Industry 335129, Other Lighting Equipment Manufacturing.

Other Aircraft Parts and Auxiliary Equipment Manufacturing

NAICS #336413 | This U.S. industry comprises establishment primarily engaged in (1) manufacturing aircraft parts or auxiliary equipment (except engines and aircraft fluid power subassemblies) and/or (2) developing and making prototypes of aircraft parts and auxiliary equipment. Auxiliary equipment includes such items as crop dusting apparatus, armament racks, inflight refueling equipment, and external fuel tanks. Establishments primarily engaged in manufacturing aircraft engines and engine parts are classified in U.S. Industry 336412, Aircraft Engine and Engine Parts Manufacturing; Establishments primarily engaged in manufacturing aeronautical instruments are classified in U.S. Industry 334511, Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing; Establishments primarily engaged in manufacturing aircraft lighting fixtures are classified in U.S. Industry 336321, Vehicular Lighting Equipment Manufacturing; Establishments primarily engaged in manufacturing aircraft engine electrical (aeronautical electrical) equipment are classified in U.S. Industry 336322, Other Motor Vehicle Electrical and Electronic Equipment Manufacturing; Establishments primarily engaged in manufacturing guided missile and space vehicle parts and auxiliary equipment are classified in U.S. Industry 336419, Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing; Establishments primarily engaged in manufacturing of aircraft fluid power subassemblies are classified in U.S. Industry 332912, Fluid Power Valve and Hose Fitting Manufacturing; Establishments primarily engaged in manufacturing of aircraft seating are classified in Industry 336360, Motor Vehicle Seating and Interior Trim Manufacturing; and Research and development establishments primarily engaged in aircraft parts and auxiliary equipment R&D (except prototype production) are classified in Industry 541710, Research and Development in the Physical, Engineering, and Life Sciences.

Lumber and Other Construction Materials Merchant Wholesalers

NAICS #4233 |

Other Professional Equipment and Supplies Merchant Wholesalers

NAICS #42349 | This industry comprises establishments primarily engaged in the merchant wholesale distribution of professional equipment and supplies (except ophthalmic goods and medical, dental, and hospital equipment and supplies). Merchant wholesale distribution of professional equipment, instruments, and/or goods sold, prescribed, or used by ophthalmologists, optometrists, and opticians, such as ophthalmic frames and lenses, and sunglasses,--are classified in Industry 423460, Ophthalmic Goods Merchant Wholesalers; Merchant wholesale distribution of medical professional equipment, instruments, and supplies used by medical and dental practitioners (except ophthalmic equipment, instruments, and goods used by ophthalmologists, optometrists, and opticians) and medical facilities--are classified in Industry 423450, Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers; Merchant wholesale distribution of silverware and plated flatware--are classified in Industry 423940, Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers; Merchant wholesale distribution of books--are classified in Industry 424920, Book, Periodical, and Newspaper Merchant Wholesalers; and Merchant wholesale distribution of school furniture--are classified in Industry 423210, Furniture Merchant Wholesalers.

Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers

NAICS #42373 | This industry comprises establishments primarily engaged in the merchant wholesale distribution of warm air heating and air-conditioning equipment and supplies. Merchant wholesale distribution of household-type electrical appliances and room air-conditioners--are classified in Industry 423620, Electrical and Electronic Appliance, Television, and Radio Set Merchant Wholesalers; Merchant wholesale distribution of hydronic heating equipment--are classified in Industry 423720, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers; and Selling and installing warm air heating and air-conditioning equipment--are classified in Industry 238220, Plumbing, Heating, and Air-Conditioning Contractors.

Airport Operations

NAICS #48811 | This industry comprises establishments primarily engaged in (1) operating international, national, or civil airports or public flying fields or (2) supporting airport operations (except special food services contractors), such as rental of hangar space, air traffic control services, baggage handling services, and cargo handling services. Providing factory conversion, overhaul, and rebuilding of aircraft--are classified in Industry 33641, Aerospace Product and Parts Manufacturing; Wholesaling fuel at airports--are classified in Industry 424720, Petroleum and Petroleum Products Merchant Wholesalers (except Bulk Stations and Terminals); Providing airport janitorial services--are classified in Industry 561720, Janitorial Services; and Providing food services at airports on a contractual arrangement (i.e., food service contractors)--are classified in Industry 722310, Food Service Contractors.