MIL-PRF-49142B
1.2.2 PIN. The PIN consists of the letter "M" followed by the basic specification sheet number and a
four digit dash number. The first digit of the dash number designates the material and finish of the
connector body (shell); "0" for silver plated brass, "7" for nickel plated brass and "3" for passivated
corrosion resistant steel. The second digit of the dash number designates modified bayonet coupling
mechanism keying when applicable (see figure 1). The third and fourth digits of the dash number are
sequentially assigned. (See section 3 for specific plating requirements.)
Example:
M49142/XX
X
X
XX
Basic specification
Specification sheet
Body material and finish
Keying
Sequentially assigned number
1.2.3 Categories. The categories of connectors are designated by an "A" (field serviceable) and "G"
(field replaceable crimp center and outer contact) (see 3.1).
a. Category A: Connectors which do not require special tools to assemble are designated as
category A connectors. Standard wrenches, soldering equipment, pliers. etc., are not defined
as special tools.
b. Category G: Connectors which require only standard military crimp tools for the center
contact and outer ferrule. The intermediate contact is assembled by a means other than
solder. Piece parts are not defined. Stripping dimensions are given in the assembly
instructions.
2
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