SS72012 datasheet(68/144 Pages) ACIT

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Aerospace | Military | Transportation | Industrial | Specialty

MIL-DTL-81381/21, /22 wire—tin-plated conductor

M81381

AWG

Stranding

Conductor Diameter

Insulation Diameter

Weight

Maximum

P/N

Size

Minimum

Maximum

Minimum

Maximum

Resistance

M81381/22-02-*

1330/30

.440 (11.18)

.475 (12.07)

.478 (12.14)

.518 (13.16)

470 (695.6)

.091

(.30)

M81381/22-01-*

1045/30

.395 (10.03)

.425 (10.80)

.461 (11.71)

374 (553.5)

.116

(.38)

M81381/22-2-*

665/30

.320 (8.13)

.340

(8.64)

.350

(8.89)

.378 (9.60)

235 (347.8)

.183

(.60)

M81381/22-4-*

133/25

.250 (6.35)

.274

(6.96)

.280

(7.11)

.306 (7.77)

148 (219.0)

.280

(.92)

M81381/22-6-*

133/27

.198 (5.03)

.217

(5.51)

.228

(5.79)

.251 (6.38)

95.1 (140.7)

.445

(1.46)

M81381/22-8-*

133/29

.158 (4.01)

.173

(4.39)

.188

(4.78)

.206 (5.23)

61.8 (91.5)

.701

(2.30)

M81381/22-10-*

37/26

.106 (2.69)

.114

(2.90)

.122

(3.10)

.130 (3.30)

31.5 (46.6)

1.26

(4.13)

M81381/22-12-*

37/28

.084 (2.13)

.090

(2.29)

.100

(2.54)

.107 (2.72)

20.4 (30.2)

2.02

(6.63)

M81381/22-14-*

19/27

.065 (1.65)

.073

(1.85)

.081

(2.06)

.089 (2.26)

13.3 (19.7)

3.06 (10.04)

M81381/22-16-*

19/29

.052 (1.32)

.058

(1.47)

.068

(1.73)

.074 (1.88)

8.7 (12.9)

4.81 (15.78)

M81381/22-18-*

19/30

.046 (1.17)

.051

(1.30)

.063

(1.60)

.068 (1.73)

7.0 (10.4)

6.23 (20.43)

M81381/22-20-*

19/32

.037

(.94)

.041

(1.04)

.053

(1.35)

.058 (1.47)

4.7

(7.0)

9.88 (32.41)

M81381/22-22-*

19/34

.029

(.74)

.033

(.84)

.045

(1.14)

.049 (1.24)

3.2

(4.7)

16.2 (53.14)

M81381/22-24-*

19/36

.023

(.58)

.026

(.66)

.040

(1.02)

.044 (1.12)

2.2

(3.3)

26.2 (85.94)

Dimensions, Resistance, and Weights—M81381/22 (tin-plated conductor)

MIL-DTL-81381/21 and /22

wires have two layers of

polyimide/FEP tape insulation with a polyimide hard

coat (or polyamide braid for AWG 8 and larger sizes

of M81381/22 types) for increased cut-through and

abrasion resistance.

Originally designed for aerospace use, these wires

are ideal for other applications requiring excellent

thermal stability, tight dimensional tolerances, and

high reliability.

These wires are especially well-suited in applications

where smoke emission, overload stability, and

ﬂammability are major concerns.

Performance:

Voltage rating:

600V.

Temperature rating:

-55 to 150˚ C.

Construction Details

Insulation:

(M81381/21): Two layers of FEP/polyimide/FEP

tape with modiﬁed aromatic polyimide coating.

(M81381/22): First layer: Polyimide/FEP tape;

Second layer: FEP/polyimide/FEP tape;

Third (outer) layer: modiﬁed aromatic polyimide coating

(10 AWG and smaller); Aromatic polyamide braid with

clear ﬁnisher (8 AWG and larger).

Conductor:

Tin-plated copper.

Colors:

Color coded to MIL-STD-104 (see page 57

for details.

Identiﬁcation:

to MIL-DTL-81381.

Dimensions in inches (mm). Weights in pounds/1000 feet (Kg/1000 M). Resistance in Ω/1,000 feet (Ω/Km), @20˚ C.

All values are nominal unless otherwise indicated. * Add color coding per MIL-STD-104 (see page 57).

M81381

AWG

Stranding

Conductor Diameter

Insulation Diameter

Weight

Maximum

P/N

Size

Minimum

Maximum

Minimum

Maximum

Resistance

M81381/21-10-*

37/26

.106 (2.69)

.114

(2.90)

.120

(3.05)

.125 (3.18)

32.4 (48.0)

1.26

(4.13)

M81381/21-12-*

37/28

.084 (2.13)

.090

(2.29)

.097

(2.46)

.102 (2.59)

20.7 (30.6)

2.02

(6.63)

M81381/21-14-*

19/27

.065 (1.65)

.073

(1.85)

.077

(1.96)

.083 (2.11)

12.8 (19.0)

3.06

(10.04)

M81381/21-16-*

19/29

.052 (1.32)

.058

(1.47)

.064

(1.63)

.069 (1.75)

8.4 (12.4)

4.81

(15.78)

M81381/21-18-*

19/30

.046 (1.17)

.051

(1.30)

.058

(1.47)

.063 (1.60)

6.6

(9.8)

6.23

(20.43)

M81381/21-20-*

19/32

.037

(.94)

.041

(1.04)

.048

(1.22)

.053 (1.35)

4.4

(6.5)

9.88

(32.41)

M81381/21-22-*

19/34

.029

(.74)

.033

(.84)

.041

(1.04)

.045 (1.14)

3.0

(4.4)

16.2

(53.14)

M81381/21-24-*

19/36

.023

(.58)

.026

(.66)

.034

(.86)

.038

(.97)

2.0

(3.0)

26.2

(85.94)

M81381/21-26-*

19/38

.018

(.46)

.021

(.53)

.030

(.76)

.034

(.86)

1.3

(1.9)

41.3 (135.46)

Dimensions, Resistance, and Weights—M81381/21 (tin-plated conductor)

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