MIL-B-18/31E
Inches
mm
Ltr
Min
Max
Min
Max
A
.495
.505
12.57
12.83
B
.745
.755
18.92
19.18
C
1.308
1.318
33.22
33.48
D
2.620
2.630
66.55
66.80
E
1.308
1.318
33.22
33.48
F
2.620
2.630
66.55
66.80
G
.433
.443
11.00
11.25
H
3.688
4.313
93.68
109.47
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for general information only.
3. Unless otherwise specified, tolerances are ±.005 (0.13 mm) for three place decimals and ±.02 (0.5
mm) for two place decimals.
4, Square, diagonal, or round corners are optional.
5. Socket type I is required. (see MIL-B-18 for details.)
6. Voltage markings may be placed either on the top or front face of the battery.
7. Marking to be in accordance with MIL-B-18.
FIGURE 1. Battery dimensions - Continued.
REQUIREMENTS:
Dimensions, marking, and configuration: See figure 1.
Nominal voltage: 1.5 volts.
Usual number and type of cells: 4 "F" cells
Usual cell connection: Parallel.
Terminals: 2-hole socket.
Weight (maximum): 1 pound, 8 ounces.
Capacity tests: When the battery is tested in accordance with the methods of examination and test of
this specification, the minimum capacity-test requirements shall be not less than the minimum time
specified for SLD or SLT.
2