MIL-DTL-50374B
3.8.1.1 Initiation. The M104 initiators shall be assembled and fired with JAU-2/A25 initiator firing
mechanisms complete with firing pins, shear pins, PVU-1/A ignition devices, and ignition device retainers.
Minimum gas pressure is 800 psig for actuation.
3.8.2 Misfires. There shall be no misfires.
3.8.3 Mechanical failures. The initiator shall function without mechanical failure (see 6.4.2).
3.9 Workmanship. Initiators shall be free of cracks, splits, or other defects which might prevent proper
mating with connecting parts or proper functioning of the device.
3.9.1 Metal defects. All components shall be free from cracks, splits, cold shuts, inclusions, porosity,
or any similar defect.
TABLE I. Pressure values.
Temperature (°F)
Minimum Pressure (psig)
Ignition delay (see 6.4.1)
milliseconds, max
-60 to -70
300
40
65 to 75
300
40
195 to 205
300
40
3.9.2 Burr. No part shall have a burr which might interfere with the assembly or function of the item
or which might be injurious to personnel handling the item.
3.9.3 Foreign matter. No part or assembly shall contain chips, dirt, grease, rust, corrosion, or other
foreign matter.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as
follows:
a. First article inspection (see 4.2).
b. Conformance inspection (see 4.3).
4.1.1 Quality assurance terms and definitions. Reference shall be made to ASQ A8402 to define
the quality assurance terms used.
4.1.3 Inspections. Inspections shall be in accordance with MIL-A-2550 and ASTM E 1742.
4.2 Inspection provisions.
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