Mil-std-167-2a Pdf ^hot^ Direct

| Test Type | Frequency Range | Amplitude | Duration | |-----------|----------------|-----------|----------| | | 2 Hz – 50 Hz (sweep log or linear) | 0.02 in (0.5 mm) displacement or 0.5g acceleration (whichever is less) | 2 hours per axis (3 axes) | | Type II – Internally Excited | Based on equipment’s own operating speeds (e.g., 10% to 120% of rated RPM) | Varies with rotating mass & imbalance | Until resonance effects are characterized |

: The original version was published on May 21, 1992 , and it remains valid for use in naval acquisitions, as confirmed by its latest Notice of Validation on February 9, 2023. mil-std-167-2a pdf

If your equipment is destined for a submarine, additional considerations apply. Submarines often reference MIL-STD-167-2A but with tighter amplitude limits due to acoustic stealth requirements. | Test Type | Frequency Range | Amplitude