Industry: 3493—Steel Springs, Except Wire
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 | Leaf springs: automobile, locomotive, and other vehicle |
| Coiled flat springs | Railroad equipment springs |
| Flat springs, sheet or strip stock | Steel springs, except wire |
| Helical springs, hot wound: for railroad equipment and vehicles | Torsion bar springs |
| Hot wound springs, except wire springs | |
| Codes |
Titles | Total Marketable US Businesses |
| 34930000 | Steel springs, except wire | 73 |
| 34930100 | Hot formed springs | 3 |
| 34930101 | Automobile springs | 26 |
| 34930102 | Helical springs, hot wound: railroad equip., etc. | 7 |
| 34930103 | Hot wound springs, except wire | 1 |
| 34930104 | Leaf springs: automobile, locomotive, etc. | 12 |
| 34930105 | Torsion bar springs | 8 |
| 34930200 | Cold formed springs | 8 |
| 34930201 | Coiled flat springs | 16 |
| 34930202 | Flat springs, sheet or strip stock | 7 |
