MIL-DTL-81219C
4.4.1. Individual tests. Each transmitter shall be subjected to the following tests as
described in 4.6.
a. Examination of product (see 4.6.1).
b. Operational check (see 4.6.2)
4.4.2 Sampling plan.
4.4.2.1 Sample plan quantity. The quantity of indicators tested for conformance
inspection shall be as follows:
Quantity to test
Quantity offered
First 15
1
Next 50
1
Next 75
1
Next 100
1
Each additional 200
1
or fraction thereof
When a defective indicator is detected, no indicators from those still in stock or later produced
shall be accepted until the extent and cause of failure have been determined and appropriately
corrected. In addition, the sample frequency shall be restarted at the 1 out of 15 level.
4.4.2.2 Sample plan tests. Sampling plan tests are in addition to the individual tests.
a. Thermal Shock (see 4.6.4).
b. Hermetic seal (see 4.6.5).
c. Dielectric strength (see 4.6.3).
4.5 Disposition of tested indicators. Indicators which have been subjected to either first
article inspection testing or conformance inspection sample plan testing may not be delivered on
a contract specifying the military part number.
4.6 Methods.
4.6.1 Examination of product. Each indicator shall be inspected to determine
compliance with the requirements specified herein with respect to materials, workmanship,
marking, dimensions, and weight.
4.6.2 Operational check. (see 3.3.8)
4.6.2.1 MS90373 (copper type).
4.6.2.1.1 Indicator cell only. The indicating cell without the regulator shall be measured
for resistance by means of an AC Wheatstone Bridge circuit (caution do not use a volt/ohm
meter) at room ambient conditions. The measured resistance shall not exceed 5000 ohms.
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