Assemble mechanical components or machine parts.

Assemble mechanical components or machine parts. is a detailed work activity in O*NET — a concrete unit of work shared across 14 occupations and seen in 18 occupation-specific tasks. It rolls up into the broader work activity Assemble equipment or components. in Handling and Moving Objects .

Detailed work activities are the most granular shared layer in O*NET's work-activity hierarchy (Generalized → Intermediate → Detailed → occupation-specific task). The figures below describe how this activity shows up across the economy and what independent studies measure about AI and this kind of work — not a prediction that the work will be automated.

AI exposure

Of the 18 tasks under this activity that the OpenAI / Eloundou “GPTs are GPTs” study rated, 0 (0%) are flagged as directly exposed to language models (E1) or exposed via model-powered tools (E2).

Exposure estimates overlap with model capabilities — whether a model could speed the task up — not whether the work will be done by software. Observed AI use is augmentation and assistance today, not jobs replaced.

Member tasks

Occupation-specific tasks O*NET maps to this detailed work activity, most important first.

• Assemble new bicycles. · Bicycle Repairers · importance 4.7 · no direct exposure
• Assemble and embed cores in casting frames, using hand tools and equipment. · Pourers and Casters, Metal · importance 4.6 · no direct exposure
• Assemble and install equipment, using hand tools and power tools. · Millwrights · importance 4.5 · no direct exposure
• Assemble machines, and bolt, weld, rivet, or otherwise fasten them to foundation or other structures, using hand tools and power tools. · Millwrights · importance 4.5 · no direct exposure
• Attach cross-arms, insulators, and auxiliary equipment to poles prior to installing them. · Electrical Power-Line Installers and Repairers · importance 4.4 · no direct exposure
• Hammer required counterweights onto rims of wheels. · Tire Repairers and Changers · importance 4.4 · no direct exposure
• Reassemble and test subassembly units. · Motorcycle Mechanics · importance 4.3 · no direct exposure
• Wind large springs with upward motion of arm. · Mechanical Door Repairers · importance 4.2 · no direct exposure
• Attach moving parts and subassemblies to basic assembly unit, using hand tools and power tools. · Millwrights · importance 4.1 · no direct exposure
• Fasten angle iron back-hangers to ceilings and tracks, using fasteners or welding equipment. · Mechanical Door Repairers · importance 4.0 · no direct exposure
• Assemble gear systems, and align frames and gears. · Mobile Heavy Equipment Mechanics, Except Engines · importance 3.9 · no direct exposure
• Disassemble and assemble machines, according to specifications and using hand and power tools. · Coin, Vending, and Amusement Machine Servicers and Repairers · importance 3.7 · no direct exposure
• Assemble aircraft cameras, still or motion picture cameras, photographic equipment, or frames, using diagrams, blueprints, bench machines, hand tools, or power tools. · Camera and Photographic Equipment Repairers · importance 3.7 · no direct exposure
• Assemble machines according to specifications, using hand or power tools and measuring devices. · Computer, Automated Teller, and Office Machine Repairers · importance 3.7 · no direct exposure
• Build wheels by cutting and threading new spokes. · Bicycle Repairers · importance 3.5 · no direct exposure
• Assemble boilers at installation sites, using tools such as levels, plumb bobs, hammers, torches, or other hand tools. · Maintenance and Repair Workers, General · importance 3.5 · no direct exposure
• Assemble new or reconditioned appliances. · Home Appliance Repairers · importance 3.2 · no direct exposure
• Devise, fabricate, or assemble new or modified mechanical components for products such as industrial machinery or equipment, and measuring instruments. · Mechanical Engineering Technologists and Technicians · no direct exposure

Occupations that perform this

• Bicycle Repairers
• Pourers and Casters, Metal
• Millwrights
• Electrical Power-Line Installers and Repairers
• Tire Repairers and Changers
• Motorcycle Mechanics
• Mechanical Door Repairers
• Mobile Heavy Equipment Mechanics, Except Engines
• Coin, Vending, and Amusement Machine Servicers and Repairers
• Computer, Automated Teller, and Office Machine Repairers
• Camera and Photographic Equipment Repairers
• Maintenance and Repair Workers, General
• Home Appliance Repairers
• Mechanical Engineering Technologists and Technicians

Sources for this page

Every figure above traces to a named public dataset and the exact release below — not hand-written opinion. See the full methodology for what each measure does and does not mean.

• O*NET 30.3 U.S. Department of Labor / National Center for O*NET Development
• “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130 OpenAI / academic

Data compiled June 2, 2026. Figures are estimates, not advice.

@misc{singulariki-assemble-mechanical-components-or-machine-parts,
  title  = {Assemble mechanical components or machine parts.},
  author = {{Singulariki}},
  year   = {2026},
  note   = {O*NET 30.3; “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130. Accessed June 7, 2026},
  url    = {https://singulariki.com/detailed-activities/assemble-mechanical-components-or-machine-parts}
}