| GSS 5150 | Heat Treatment of Titanium and Titanium Alloys | Heat Treat |
| Supercedes: None | Superceded By: None |
| Number | Name | State | Country |
| 90067803 | ALIGN PRECISION – Cedar City, LLC | UT | United States |
| 90055235 | GLOBE ENGINEERING COMPANY INC | KS | United States |
| 90075284 | RADIUS AEROSPACE INC | AR | United States |
| 90053653 | Solar Atmospheres of Michigan | MI | United States |