MIL-PRF-49177B(CR)
3.6.3 Low temperature. The Scan-Interlace shall not be damaged by operation to -54 °C,
and storage to -62°C. The scan motor HI waveform (P1-13, Figure 8) shall not change more
than ±15 percent from the initial setup at ambient temperature over the specified operating
temperature range (-54°C). The solenoid drive amplifier output at J1-5 and J1-7 as shown in
blocks B-5 and C-5 on Drawing SM-D-773944 shall not change more than ±15 percent from
the initial setup at ambient temperature (see 4.4) over the specified operating temperature range
(-54°C).
3.6.4 Shock. The Scan-Interlace shall not be damaged by high intensity shocks of 100
g's peak amplitude with 11 milliseconds duration and by bench handling tests.
3.6.5 Vibration. The Scan-Interlace shall not be damaged by vibration over the
frequency spectrum at the specified g levels and amplitudes shown in Figure 1.
3.7 Reliability. The Scan-Interlace shall have a mean time between failure (MTBF) of
least 17,500 hours, θ0. Methods described in MIL-HDBK-338/1 and evaluated per
MIL-HDBK-781 may be used. (see 4.7).
3.8 Coating. Unless otherwise specified, the Scan-Interlace and its components and
parts shall be cleaned and coated to prevent corrosion, oxidation and fungus growth.
3.9 Preconditioning. Each Scan-Interlace shall be subjected to at least a 20-cycle
preconditioning environment as specified in Figure 2 prior to Group A inspection (for exception
to this requirement see 6.2).
3.10 Soldering. Unless otherwise specified, electronic soldering shall conform to
ANSI/IPC-S-815A.
3.11 Nameplates and product marking. The assembly, parts, components,
subassemblies and assemblies thereof shall be marked for identification and reference
designation markings. For guidance, use MIL-HDBK-454.
3.12 Workmanship. All electronic parts, components, assemblies or sub-assemblies
shall be free of smudges, excess solder, metal chips or the existence of any foreign material on
any surface. Bearing assemblies shall be free from rust, dirt or tool marks. Wires or integrated
circuitry shall be protected from contact with rough or irregular surfaces and be shielded from
shorting.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are
classified as follows:
a. First article inspection (see 4.2)
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