MIL-DTL-642/1B
Inches
mm
Inches
mm
Inches
mm Inches
mm Inches
mm
.001
0.03
.012
.030
.250
6.35
.552
14.02 1.781
45.24
.002
0.05
.015
0.38
.3125
7.94
.812
20.62 2.015
51.18
.003
0.08
.131
3.33
.375
9.54
.855
21.72 2.109
53.57
.005
0.13
.187
4.75
.437
11.10 .960
24.38 3.406
86.51
.006
0.15
.190
4.83
.439
11.15 1.209
30.71
.008
.020
.244
6.20
.441
11.20 1.687
42.85
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for information only.
3. Unless otherwise specified, tolerance is ±.010 (.25mm).
4. After assembly, the eccentricity between the end of the shank and the tip of the plug shall not exceed
.008 inch (.20mm) total indicator reading (TIR).
FIGURE 1. Dimensions and configuration - Continued.
REQUIREMENTS:
Dimensions and configuration: See figure 1.
Shell shall be plastic in accordance with MIL-DTL-642.
Terminal screws shall be .086-64 UNF-2A in accordance with MIL-DTL-642/12.
Shell screws shall be .112-48 UNF-2A in accordance with MIL-DTL-642/12.
The Part or Identifying Number (PIN) consists of the letter M, the basic specification number, the
specification sheet number, and dash number for plug type. (see table I)
M
642
/1
-
1
Type designation
Specification sheet number
Specification number
M prefix
PIN example: M642/1-1 indicates type PJ-047B telephone plug.
TABLE I. PIN.
Dash number
Type designation
Shell material
PJ-047B
Black plastic
1
PJ-047R
Red plastic
2
2