| Specification | ProcessDescription | Category | SpecLimits |
| AMS 2759 | General Requirements for Heat Treatment of Steel Parts | Heat Treat | Limits: Ground support hardware only |
| AMS 2759/ 1 | Heat Treatment of Carbon and Low-Alloy Steel Parts Min Ten. Str.< 220ksi | Heat Treat | Limits: Ground support hardware only |
| MIL-H-6875 | Heat Treatment of Steel, Process for | Heat Treat | Limits: Ground support hardware only |