MIL-DTL-5846D
Second Inner wrap (if required) (individual conductors)
Third Primary insulation (individual conductors)
Fourth Layer of braid, fibrous covering or other approved
material (if required) (individual conductors)
Fifth Chromel and alumel insulated wires laid in parallel
and covered with duplexing outer covering
Sixth Outer protective coating (if required)
3.3.1 Conductors.
3.3.1.1 Metals. The conductors shall consist of chromel or alumel as specified herein and
shall be of such quality as to produce the characteristics specified herein. The conductors
shall be free from lumps, kinks, splits, abrasions, and scraped or corroded surfaces.
3.3.1.2 Stranding. Stranding may be bunched, concentric or rope lay and as specified in
Table I. The wire sizes of all strands shall be the same for any one conductor except for
Types 2, 3, and 4, where strand size may vary to facilitate resistance adjustments.
TABLE I. Details of wire construction.
Weight
Maximum
Number
Nominal
Type
Class
American
Nominal
Lb
Diameter
of
Conductor
Wire Gage
Conductor
(max)
Strands
of Finished
Area
Diameter
(min)
Wire
(circular
(inches)
(inches)
mils)
4107
0.0641
1
A
14
2583
0.0508
16
1624
0.0403
18
1021
0.0320
20
254
0.0159
26
1
B
14
0.0641
4107
0.150
16
0.0508
2583
0.130
18
0.0403
1624
0.115
20
0.0320
1021
0.110
26
0.0159
254
0.070
0.315
4107
0.0641
1
C
14
0.275
2583
0.0508
(See
16
0.245
1624
0.0403
Note 1)
18
0.225
1021
0.0320
20
0.155
254
0.0159
26
9
0.170
4107
0.080
1
D
14
8
0.150
2583
0.063
16
7
0.135
1624
0.048
18
4
0.115
1021
0.039
20
3
0.090
404
0.025
24
3
0.075
254
0.020
26
5
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