| 2007 NAICS | 2012 NAICS | 2017 NAICS | Corresponding Index Entries | |||
| 333997 | 333997 | 333997 | Baby scales manufacturing | |||
| 333997 | 333997 | 333997 | Balances, including laboratory-type, manufacturing | |||
| 333997 | 333997 | 333997 | Bathroom scales manufacturing | |||
| 333997 | 333997 | 333997 | Delicatessen scales manufacturing | |||
| 333997 | 333997 | 333997 | Industrial scales manufacturing | |||
| 333997 | 333997 | 333997 | Motor truck scales manufacturing | |||
| 333997 | 333997 | 333997 | Parcel post scales manufacturing | |||
| 333997 | 333997 | 333997 | Post office-type scales manufacturing | |||
| 333997 | 333997 | 333997 | Railroad track scales manufacturing | |||
| 333997 | 333997 | 333997 | Retail scales (e.g., butcher, delicatessen, produce) manufacturing | |||
| 333997 | 333997 | 333997 | Scales, including laboratory-type, manufacturing | |||
| 333997 | 333997 | 333997 | Vehicle scales manufacturing |