Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Costume (hierarchy name)
5. costume (mode of fashion)
6. [costume by function]
7. protective wear

Additional parents:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment
4. Costume
5. costume
6. costume accessories
7. worn costume accessories
8. accessories by location on the head
9. headgear
10. hats

Narrower term/s

• helmet components [NP][+]
  • aventails
  • falling buffes
  • cheekpieces
  • bevor components [+]
    • lower bevors
    • upper bevors
  • combs (armor components)
  • lifting pegs
  • plume holders
  • gorget plates
  • skulls (helmet components)
  • helmet visors [+]
    • bellows visors
    • pig-faced visors
  • arming caps
  • brow reinforces
  • helmet covers
• hard hats [NP]
• crash helmets[+]
  • full-face helmets
• [body armor for the head] [NP][+]
  • helmets (protective wear) [NP] [+]
    • helmet components [NP] [+]
      • aventails
      • falling buffes
      • cheekpieces
      • bevor components [+]
      • combs (armor components)
      • lifting pegs
      • plume holders
      • gorget plates
      • skulls (helmet components)
      • helmet visors [+]
      • arming caps
      • brow reinforces
      • helmet covers
    • hard hats [NP]
    • crash helmets [+]
      • full-face helmets
    • [body armor for the head] [NP] [+]
      • helmets (protective wear) [NP] [+]
      • armets
      • barbuts
      • basnets [+]
      • burgonets [+]
      • close helmets
      • helms (body armor) [+]
      • morions
      • sallets [+]
      • kettle hats
      • cabassets
      • jockey cap helmets
      • Attic helmets
      • Corinthian helmets
      • Illyrian helmets
      • pseudo-Corinthian helmets
      • Spangenhelme
      • steel skulls
      • riot helmets
      • dragoon helmets
      • combat helmets
      • para helmets
      • pickelhaubes
      • tank helmets
      • flight helmets
      • Stahlhelms
      • heaumes
      • Spanish morions
    • fire hats
    • topees
    • caschetti
    • parade helmets
    • police helmets
    • aviator's helmets
    • plate helmets
  • armets
  • barbuts
  • basnets [+]
    • great basnets
  • burgonets [+]
    • closed burgonets
    • Zischäggen
  • close helmets
  • helms (body armor) [+]
    • frog-mouthed helms
    • tournament helms
  • morions
  • sallets [+]
    • Rennhüte
  • kettle hats
  • cabassets
  • jockey cap helmets
  • Attic helmets
  • Corinthian helmets
  • Illyrian helmets
  • pseudo-Corinthian helmets
  • Spangenhelme
  • steel skulls
  • riot helmets
  • dragoon helmets
  • combat helmets
  • para helmets
  • pickelhaubes
  • tank helmets
  • flight helmets
  • Stahlhelms
  • heaumes
  • Spanish morions
• fire hats
• topees
• caschetti
• parade helmets
• police helmets
• aviator's helmets
• plate helmets

Anotations

Scope note:

Any of various forms of protective coverings for the head, usually made of a hard material, including the outside steel layer of helmets that consist of inner and outer parts.