MIL-DTL-9419G
3.5.19 Switch resistance. When measured as specified in 4.7.21, the switch resistance shall not
exceed 25 milliohms initially and 40 milliohms after the mechanical endurance test. After electrical
endurance, the switch resistance shall not exceed 1 percent of the load impedance using the electrical
parameters of the electrical endurance test load. For switches with integral lead wires, the switch
resistance shall be as specified (see 3.1).
3.6 Marking. Switches shall be marked in accordance with the following:
a.
MS part number or detail specification sheet part number.
b.
Switch manufacturer's name, trademark or code symbol.
c.
Switch manufacturer's part number.
d.
Date of manufacture; such as day, month, or year.
3.7 Workmanship. Switches shall be processed in such a manner as to be uniform in quality and free
from cracked or displaced parts or other defects which effect life, serviceability, or appearance. Switches
shall have an all over smooth, high finish surface and shall be free from warpage, checks, blisters,
projecting ridges or chips. Gate marks shall not be considered a defect.
4. VERIFICATION
4.1. Responsibility for compliance. All items must meet all requirements of sections 3 and 5. The
inspection set forth in this specification shall become a part of the contractor's overall inspection system
or quality program. The absence of any inspection requirements in the specification shall not relieve the
contractor of the responsibility of assuring that all products or supplies submitted to the Government for
acceptance comply with all requirements of the contract. Sampling in quality conformance does not
authorize submission of known defective material, either indicated or actual, nor does it commit the
Government to acceptance of defective material.
4.2 Test equipment and inspection facilities. The contractor shall establish and maintain a calibration
system in accordance with ANSI/NCSL Z540-1, ISO-10012-1, or equivalent system as approved by the
qualifying activity
4.3 Classification of inspections. The inspection requirements specified herein are classified as
follows:
a. Qualification inspection (see 4.5).
b. Conformance inspection (see 4.6).
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.
4.5 Qualification inspection. Qualification inspection shall be performed at a laboratory acceptable to
the Government (see 6.4) on sample units produced with equipment and procedures normally used in
production.
4.5.1. Test routine. Sample units shall be subjected to the qualification inspection specified in table I, in
the order shown.
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