| PR11-11 | HEAT TREATMENT OF 440C STAINLESS STEEL | Heat Treat |
| Superseded by: None | Superseded By: None | |
| Selected sector: SP-SSSD | Date added: | |
| SupplierNumber | SupplierName | State | CountryName |
| 90050936 | INDUSTRIAL TECTONICS BEARINGS CORP | CA | United States |
| 90126948 | Jasco Heat Treating, Inc | NY | United States |
| 90042003 | KAYDON CORPORATION | MI | United States |
| 90127173 | MPB Corporation | NH | United States |
| 90040971 | MPB CORPORATION DBA TIMKEN SUPER | NH | United States |