This U.S. industry comprises establishments primarily engaged in manufacturing springs from purchased wire, strip, or rod.

• Automobile suspension springs, heavy gauge metal, manufacturing
• Coiled springs (except clock, watch), light gauge, made from purchased wire or strip, manufacturing
• Coiled springs, heavy gauge metal, manufacturing
• Disk and ring springs, heavy gauge metal, manufacturing
• Flat springs (except clock, watch), light gauge, made from purchased wire or strip, manufacturing
• Flat springs, heavy gauge metal, manufacturing
• Furniture springs, light gauge, unassembled, made from purchased wire or strip
• Gun springs, light gauge, made from purchased wire or strip, manufacturing
• Hairsprings (except clock, watch), light gauge, made from purchased wire or strip, manufacturing
• Helical springs, hot wound heavy gauge metal, manufacturing
• Helical springs, light gauge, made from purchased wire or strip, manufacturing
• Instrument springs, precision (except clock, watch), light gauge, made from purchased wire or strip, manufacturing
• Leaf springs, heavy gauge metal, manufacturing
• Mattress springs and spring units, light gauge, made from purchased wire or strip
• Sash balance springs, light gauge, made from purchased wire or strip
• Springs and spring units for seats, light gauge, made from purchased wire or strip
• Springs, heavy gauge metal, manufacturing
• Springs, light gauge (except clock, watch), made from purchased wire or strip
• Springs, precision (except clock, watch), light gauge, made from purchased wire or strip
• Torsion bar, heavy gauge metal, manufacturing
• Upholstery springs and spring units, light gauge, made from purchased wire or strip