Establishments primarily engaged in manufacturing leaf springs, hot wound springs, and coiled flat springs. Establishments primarily engaged in manufacturing wire springs are classified in Industry 3495.

  • Automobile springs
  • Coiled flat springs
  • Flat springs, sheet or strip stock
  • Helical springs, hot wound: for railroad equipment and vehicles
  • Hot wound springs, except wire springs
  • Leaf springs: automobile, locomotive, and other vehicle
  • Railroad equipment springs
  • Steel springs, except wire
  • Torsion bar springs