MIL-DTL-21097/21C
Inches
mm
Inches
mm
Inches
mm
Size
Dim L
Dim M
± .003
± .003
.002
.05
.048
1.22
.170
4.32
.003
.08
.050
1.27
.173
4.39
2
.111
see note 7
.004
.10
.055
1.40
.200
5.08
.005
.13
.087
2.21
.235
5.97
3
.142
see note 7
.010
.25
.111
2.82
.250
6.35
.016
.41
.115
2.92
.291
7.39
4
.173
see note 7
.022
.56
.116
2.95
.300
7.62
.024
.61
.120
3.05
.308
7.82
.026
.66
.125
3.18
.328
8.33
.030
.76
.128
3.25
.333
8.45
.035
.89
.142
3.61
.340
8.64
.043
1.09
.156
3.96
.435
11.05
.160
4.06
.455
11.56
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for information only.
3. Unless otherwise specified, tolerance is ± .015 (.38 mm) for three place decimals.
4. Contacts and terminals shall be designated on the connector using raised letters and numerals in the
location shown on the connector drawing. The letters G, I, O and Q shall not be used. On the
connector top either letters only, numbers only or both may be used at manufacturers option. The
bottom number and letter designation shall correspond with the top designation in designating the
same contact.
5. The shape of the barriers is optional except that barriers shall not protrude beyond the plane of the
underside of the mounting flange. Center barrier shall be optional.
6. The portion of the terminal from the bottom of the terminal hole to the end of the terminal shall lie
within the indicated tolerance zone.
7. Slot shall accept the following thickness printed wiring board:
Size 2 - .054 (1.37 mm) to .071 (1.80 mm)
Size 3 - .086 (2.18 mm) to .103 (2.62 mm)
Size 4 - .117 (2.97 mm) to .134 (3.40 mm)
Slot shall prevent entry of a printed wiring board having the following thicknesses: Size 2 - .084
(2.13 mm), Size 3 - .113 (2.87 mm), Size 4- .144 (3.67 mm).
8. Gate allowance shall not exceed .005 (.13 mm) above or below the molded surface.
9. Not for new design in Department of Army Equipment.
10. Types A and AD connectors shall not be used in airborne equipment.
FIGURE 1. Type A and AD connectors Continued.
3
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