NAICS 336412 - Aircraft Engine and Engine Parts Manufacturing
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What is NAICS 336412
NAICS code 336412 encompasses establishments engaged in the manufacturing, prototype development, modification, overhaul, and rebuilding of aircraft engines and their components. Businesses operating in this sector produce propulsion systems that power a wide range of aircraft, including commercial, military, and specialized aviation platforms. This industry plays a critical role in ensuring aircraft performance, reliability, and compliance with stringent safety standards. Government agencies contract these services to maintain and upgrade aviation capabilities, support defense readiness, and foster innovation in propulsion technology, which is vital for national security and transportation infrastructure.
Industry Classification for NAICS 336412
This U.S. industry comprises establishments primarily engaged in one or more of the following: (1) manufacturing aircraft engines and engine parts; (2) developing and making prototypes of aircraft engines and engine parts; (3) aircraft propulsion system conversion (i.e., major modifications to systems); and (4) aircraft propulsion systems overhaul and rebuilding (i.e., periodic restoration of aircraft propulsion system to original design specifications).
Breakdown for NAICS 336412
- Manufacturing of aircraft engines and engine components for civil and military use.
- Development and prototyping of new aircraft engine designs and technologies.
- Major modifications and conversions of existing aircraft propulsion systems.
- Overhaul and rebuilding services to restore engines to original design specifications.
- Industry includes large OEMs and specialized subcontractors.
- Subject to strict regulatory and quality control standards.
Included Activities for NAICS 336412
- Fabrication and assembly of aircraft engines and engine parts.
- Design and testing of engine prototypes and components.
- Conversion and modification of propulsion systems for upgraded performance.
- Scheduled overhaul and rebuilding of propulsion systems.
- Quality assurance and compliance testing for aviation standards.
- Research and development for fuel efficiency and emissions reduction.
- Maintenance and repair services for military and commercial aircraft engines.
- Supply chain management for engine parts and components.
Business Types for NAICS 336412
- Original Equipment Manufacturers (OEMs) specializing in aerospace engines.
- Aerospace engineering and prototype development firms.
- Maintenance, Repair, and Overhaul (MRO) service providers.
- Government contractors supporting military aviation programs.
- Specialized component manufacturers for engine parts.
- Research institutions collaborating on propulsion innovations.
Subcategories for NAICS 336412
- Aircraft engine and engine parts (except carburetors, pistons, piston rings, valves) manufacturing
- Aircraft engine overhauling
- Aircraft engine rebuilding
- Aircraft turbines manufacturing
- Developing and producing prototypes for aircraft engines and engine parts
- Engines and engine parts, aircraft (except carburetors, pistons, piston rings, valves), manufacturing
- Gas turbines, aircraft, manufacturing
- Gasoline engine parts (except carburetors, pistons, piston rings, valves), aircraft, manufacturing
- Gasoline engines, aircraft, manufacturing
- Internal combustion engines, aircraft, manufacturing
- Jet propulsion and internal combustion engines and parts, aircraft, manufacturing
- Rocket engines, aircraft, manufacturing
Government Buyers for NAICS 336412
Primary government buyers for this NAICS code include the Department of Defense (DoD), particularly branches such as the Air Force and Navy, which require advanced aircraft engines for fighter jets, transport aircraft, and unmanned aerial vehicles. The Federal Aviation Administration (FAA) and other federal agencies also procure engine parts and overhaul services to support civil aviation safety and regulatory compliance. These agencies rely on contractors to provide reliable propulsion systems, perform critical maintenance, and support research and development initiatives that enhance aircraft efficiency and reduce environmental impact.
Contract Types & Procurement for NAICS 336412
Contracts under NAICS 336412 typically include firm-fixed-price, cost-plus-incentive-fee, and indefinite-delivery/indefinite-quantity (IDIQ) agreements. Procurement methods often involve competitive bidding, negotiated contracts, and Small Business Innovation Research (SBIR) programs to encourage technological advancement. Contract values can range from several hundred thousand to hundreds of millions of dollars, depending on the complexity of engine systems, volume of parts, and scope of overhaul or prototype development. Long-term contracts for maintenance and upgrades are common due to the lifecycle nature of aircraft propulsion systems.
Details for NAICS 336412
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