MIL-DTL-22759/89A
Table I. Construction details.
Conductor
Finished Wire
Diameter
Weight
Stranding
Diameter
Resistance
at 20° C
1/
(in.)
(lb./100
Part No.
Wire
(number
(in.)
(68°F)
Size
of strands
0 Ft)
x AWG
(ohms/ 1000
(Max.)
gauge of
MIN.
MAX.
ft max.)
Min.
Max.
strands)
M22759/89-26-*
0.033
26
19 x 38
0.0175
0.0204
56.4
0.037
1.55
M22759/89-24-*
24
19 x 36
0.0225
0.0244
0.038
0.042
2.15
28.4
M22759/89-22-*
22
19 x 34
0.0285
0.0314
17.5
0.043
0.047
3.00
10.7
0.051
M22759/89-20-*
20
19 x 32
0.0365
0.0395
0.055
4.55
1/
Part Number: The asterisks in the part number column of Table I shall be replaced by color code designators in
accordance with MIL-STD-681. Examples: M22759/89-20-93 is a 20 AWG white with orange stripe.
1/
Table II.
Wire Insulation materials.
Tape Code
Thickness (Nom)
Material
1
0.0020
0.0005 (FP) / 0.0010 (Polyimide) / 0.0005 (FP)
2
0.0020
FP (Unsintered)
1/
Physical properties of FP unsintered tapes shall be in accordance with MIL-W-22759 requirements.
TABLE III. Physical properties of FP/Polyimide/FP Tapes.
Tensile Strength
19,000 lb/in sq. (average minimum)
Tensile Modulus
350,000 lb/in sq. (average minimum)
Elongation
40 percent (average minimum)
Dielectric Strength
4,000 volts/mil (average minimum)
0.0005 FP Layer (bottom)
Distinguishable color (next to conductor)
May be used at manufacturer's option
1/
TABLE IV. Tape overlap requirements.
Wrap 1
Wrap 2
Nominal
Percent
Percent
Wall
Wire
Tape
Overlap
Tape
Overlap
Thickness
Size
Code
Min
Max
Code
Min
Max
(mils)
26
1
50.5
54.0
2
50.5
54.0
7.4
24
1
50.5
54.0
2
50.5
54.0
7.4
22
1
50.5
54.0
2
50.5
54.0
7.4
20
1
50.5
54.0
2
50.5
54.0
7.4
1/
Wrap 1 is innermost tape which is in contact with the conductor .
2