MIL-DTL-28788C
shall be no residual flame from the unit under test, upon removal of the external flame source and there
shall be no evidence of external leakage of the media.
3.27 Salt spray (corrosion). When tested as specified in 4.7.23, switches shall show no evidence of
destructive corrosion. After the test any mounting hardware (if applicable) shall be readily removable.
NOTE: Destructive corrosion shall be construed as being any type of corrosion which in any way
interferes with the mechanical or electrical performance, or in the case of plated metals, corrosion which
has passed through the plating and attacked the base metal.
3.28 Burst pressure. When switches are tested as specified in 4.7.24, there shall be no evidence
Following the test, the dielectric withstanding voltage shall be as specified in 3.20.
3.29 Marking. Switches shall be marked in accordance with MIL-STD-1285 with the military part
number or the manufacturer's part number (when specified, see 6.1), date code, and the manufacturer's
trademark or code symbol. For polarized switches, the plus terminal shall be marked with a positive sign.
When a military part number is not available, the flow setting and contract arrangement shall be marked
on the switches.
3.30 Workmanship. Switches shall be processed in such a manner as to be uniform in quality and
shall be free from cracked or displaced parts, sharp edges, burrs, and other defects which will affect life,
serviceability, or appearance.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as
follows:
a. Materials inspection (see 4.3).
b. Qualification inspection (see 4.5).
c. Conformance inspection (see 4.6).
d. Packaging inspection (see 4.6.2
4.2 Test equipment and inspection facilities. Test and measuring equipment and inspection facilities
of sufficient accuracy, quality, and quantity to permit performance of the required inspection shall be
established and maintained by the contractor. The establishment and maintenance of a calibration
system to control the accuracy of the measuring and test equipment shall be in accordance with
ANSI/NCSL Z540.3, ISO 10012-1 or approved equivalent.
4.3 Materials inspection. Materials inspection shall consist of certification supported by verifying data
that the materials listed in table I, used in fabricating the switches, are in accordance with the applicable
referenced specification or requirements prior to such fabrication.
4.4 Inspection conditions. Unless otherwise specified herein, all inspections shall be performed in
accordance with the test conditions specified in the GENERAL REQUIREMENTS of MIL-STD-202.
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