NAICS 333613 - Mechanical Power Transmission Equipment Manufacturing
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What is NAICS 333613
NAICS code 333613 covers establishments primarily engaged in manufacturing mechanical power transmission equipment, excluding those for motor vehicles and aircraft. This sector includes the production of plain bearings, clutches, couplings, joints, and drive chains, which are essential components used to transfer power in a wide variety of industrial machinery and systems. Companies operating in this sector typically specialize in precision manufacturing and engineering to ensure reliability and efficiency in mechanical power transmission solutions. Government agencies contract these services to support infrastructure, defense, manufacturing, and maintenance operations that require robust and durable mechanical components.
Industry Classification for NAICS 333613
This U.S. industry comprises establishments primarily engaged in manufacturing mechanical power transmission equipment (except motor vehicle and aircraft), such as plain bearings, clutches (except motor vehicle and electromagnetic industrial control), couplings, joints, and drive chains.
Breakdown for NAICS 333613
- Manufactures mechanical power transmission equipment excluding motor vehicle and aircraft components.
- Includes products such as plain bearings, clutches, couplings, joints, and drive chains.
- Supports a wide range of industrial and government applications requiring reliable power transfer.
- Small business size standards generally apply based on employee count or revenue limits.
- Contracts range from small parts orders to large-scale infrastructure and defense projects.
Included Activities for NAICS 333613
- Designing and manufacturing mechanical clutches for industrial use.
- Producing couplings and joints for machinery and power systems.
- Fabricating plain bearings used in rotating and sliding applications.
- Manufacturing drive chains for conveyors and power transmission.
- Testing and quality assurance of mechanical power transmission components.
- Customizing equipment to meet government specifications and standards.
- Providing maintenance and replacement parts for federal facilities.
- Supplying components for defense and energy sector machinery.
Business Types for NAICS 333613
- Mechanical power transmission equipment manufacturers
- Precision engineering firms specializing in industrial components
- Small and medium-sized manufacturing enterprises
- Defense contractors providing mechanical assemblies
- Industrial supply companies
- Maintenance and repair service providers for mechanical components
Subcategories for NAICS 333613
- Ball joints (except aircraft, motor vehicle) manufacturing
- Bearings, plain (except internal combustion engine), manufacturing
- Bushings, plain (except internal combustion engine), manufacturing
- Chains, power transmission, manufacturing
- Collars, shaft for power transmission equipment, manufacturing
- Couplings, mechanical power transmission, manufacturing
- Drive chains, bicycle and motorcycle, manufacturing
- Joints, swivel (except aircraft, motor vehicle), manufacturing
- Joints, universal (except aircraft, motor vehicle), manufacturing
- Pulleys, power transmission, manufacturing
- Railroad car journal bearings, plain, manufacturing
- Sheaves, mechanical power transmission, manufacturing
- Sprockets, power transmission equipment, manufacturing
- Universal joints (except aircraft, motor vehicle) manufacturing
Government Buyers for NAICS 333613
Federal agencies such as the Department of Defense, the Department of Energy, and the General Services Administration frequently purchase mechanical power transmission equipment to maintain and upgrade military vehicles, power plants, and federal facilities. These agencies rely on this equipment to ensure operational readiness and efficiency in critical systems, including manufacturing lines, energy production, and transportation infrastructure. State and local governments also procure these components for public works, utilities, and transportation projects that require mechanical power transmission solutions.
Contract Types & Procurement for NAICS 333613
Contracts in this NAICS sector often include firm-fixed-price, indefinite delivery/indefinite quantity (IDIQ), and requirements contracts. Procurement methods typically involve competitive bidding, requests for proposals (RFPs), and sole-source contracts when specialized equipment is needed. Contract values can range widely based on project scope, from small-scale orders for replacement parts to multi-million dollar contracts supporting large infrastructure or defense projects. Government buyers prioritize quality, compliance with specifications, and timely delivery in contract awards.
Details for NAICS 333613
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