MIL-P-642D
AMENDMENT 3
24 January 2000
SUPERSEDING
AMENDMENT 2
17 January 1992
MILITARY SPECIFICATION
PLUGS, TELEPHONE, AND ACCESSORY SCREWS,
GENERAL SPECIFICATION FOR
This amendment forms a part of MIL-P-642D, dated 27 February 1979, and is
approved for use by all Departments and Agencies of the Department of Defense.
PAGE 2
2.2, following entry for "NATIONAL BUREAU OF STANDARDS", add the following:
"AMERICAN SOCIETY FOR TESTING AND MATERIAL (ASTM)
D4673 - Standard Specifications for Acrylonitrile-Butadiene-Styrene (ABS) Molding and Extrusion
Materials.”
“(Application for copies should be addressed to the American Society for Testing and Materials, 1916
Race Street, Philadelphia, Pa 19103-1187.)"
3.4.2, delete and substitute the following:
“3.4.2 Shells. Unless otherwise specified (see 3.1), shells shall be plastic in accordance with ASTM
D4066, form R or Tm, type PBE, of MIL-P-79; type II of ASTM D787; a substituted polyarylether
material, such as a polysulfone; or acrylonitrile-butadiene-styrene (ABS) in accordance with ASTM
D4673.”
PAGE 9
4.6.8, delete and substitute the following:
“4.6.8 Vibration (see 3.6.7). Plugs shall be tested in accordance with method 2005 of MIL-STD-1344.
The following details and exceptions shall apply:
a. Method of mounting: Plugs shall be mounted with their longitudinal axis in a horizontal plane.
b. Test condition: I.
c. Direction of motion: Along the axis of the plug and then perpendicular to the axis of the plug.
d. Measurements during vibration: Each plug shall be monitored for electrical continuity, using a
test current of 100 ±2 milliamperes dc. Loss of continuity for a period longer than 10 microseconds
constitutes a failure.
AMSC/NA 1 of 2 FSC 5935
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
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