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|  MIL-M-70777 (AR)
4.5.4 Functioning output. The transfer lead assemblies shall
be assembled into a plastic holder and placed with the end of. the
assembly in contact with a witness plate of material and thickness
as specified in 3.3. The transfer lead assembly shall be
initiated by an M100 electric detonator firing across an air gap
.010 inches. The detonator shall be initiated by
of .110
applying the energy from a suitable power source (e.g. 100 .
microfarad capacitor charged to 1.6 volts maximum or 6 volt
battery) . The depth of the depression in the witness plate shall
.001 inch
be determined using a dial indicator with a .015
spherical radius indicator tip.
4.5.5 Conditioning and functioning.
4.5.5.1 Preparation of samples. Each transfer lead assembly
to be subjected to the functioning test shall be assembled into a
slider 9366664 forming a slider assembly as per 9366684. This
assembly shall then be assembled into a S&A as per 9366668. The
slider shall be assembled as to be `in line" with the lead cup
9298456. Assembly of the piston actuator and the safety pin shall
be omitted. An electric detonator M100 (Dwg. 9245691) shall be
shorted and assembled with seal washer into the input hole of the
S&A assembly. A successful test shall constitute of firing the
detonator, propagating thru the transfer lead and into the lead
cup assembly.
A similar test plan could be formulated by the contractor
providing that acceptance of the test method is approved prior to
testing by the government agency AMSMC-QAT-M (D).
4.5.5.2 Hot conditioning. The transfer lead assemblies to be
conditioning and functioning at hot temperature shall be prepared
as specified in 4.5.5.1. They shall then be placed in a suitable
temperature conditioning box and the temperature increased to 165
+ 5F with relative humidity not less than 15%. The rate of
temperature increase shall not exceed 18F per minute. The
samples shall be maintained at temperature for forty (40) hours
minimum.
The temperature in the oven shall then be reduced to 125
5F and the assemblies shall be conditioned at temperature for
two (2) hours minimum. The assemblies shall then be removed from
the oven and functioned as specified in 4.5.5.4. Set-up time
between removal from the oven and firing shall be five (5) minutes
maximum.
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