MIL-W-81381/13
Insulating Material: FEP and PMDA-ODA
Insulation Thickness: 17 mil ( 0.40 mm)

Wire Properties
Voltage Rating: 600
Temperature Rating: 200 C
Conductor Type: Silver plated high strength Copper
Construction Details: Two FEP coated PMDA-ODA tapes (one 1 mil and the other 2 mil thick) wrapped in an overlapping manner and a modified PMDA-ODA top coat. For AWG – 28 wire there are three FEP coated PMDA-ODA tapes 1 mil thick and a modified PMDA-ODA top coat.
Additional Information: Nomex® topcoat on wires size 8 and larger.
| Part ID | AWG | Strands | Conductor | Coating | Resist. | Min. Diam | Max. Diam | Min. Thick | Max Thick | Min Diam. | Max Diam | Weight | Additional Notes |
| M81381/13-28-* | 28 | 7 x 36 | H.S.C.A. | Silver | 74.4 | 0.014 | 0.0150 | | | 0.031 | 0.035 | 1.2 | - The * shall be replaced by the code code indicated in MIL-STD-681
- Wrap 1 - .1/1/.1 overlap 50% - (0.1mil FEP/ 1mil polyimide/ 0.1mil FEP)
- Wrap 2 - .1/1/.1 overlap 50%
- Wrap 3 - .1/1/.1 overlap 50% |
| M81381/13-26-* | 26 | 19 x 38 | H.S.C.A. | Silver | 44.8 | 0.0175 | 0.0204 | | | 0.036 | 0.040 | 1.5 | - The * shall be replaced by the code code indicated in MIL-STD-681
- Wrap 1 - 0/2/.5 overlap 50% - (2 mil polyimide/ 0.5 mil FEP)
- Wrap 2 - .1/1/.1 overlap 50% |
| M81381/13-24-* | 24 | 19 x 36 | H.S.C.A. | Silver | 28.4 | 0.0225 | 0.0244 | | | 0.041 | 0.045 | 2.2 | - The * shall be replaced by the code code indicated in MIL-STD-681
- Wrap 1 - 0/2/.5 overlap 50% - (2 mil polyimide/ 0.5 mil FEP)
- Wrap 2 - .1/1/.1 overlap 50% |
| M81381/13-22-* | 22 | 19 x 34 | H.S.C.A. | Silver | 17.5 | 0.0285 | 0.0314 | | | 0.047 | 0.051 | 3.1 | - The * shall be replaced by the code code indicated in MIL-STD-681
- Wrap 1 - 0/2/.5 overlap 50% - (2 mil polyimide/ 0.5 mil FEP)
- Wrap 2 - .1/1/.1 overlap 50% |
| M81381/13-20-* | 20 | 19 x 32 | H.S.C.A. | Silver | 10.7 | 0.0365 | 0.0395 | | | 0.055 | 0.059 | 4.8 | - The * shall be replaced by the code code indicated in MIL-STD-681
- Wrap 1 - 0/2/.5 overlap 50% - (2 mil polyimide/ 0.5 mil FEP)
- Wrap 2 - .1/1/.1 overlap 50% |
The values for resistance are rated for ohms/1000ft at 20 Deg C.
The units of the diameters are in inches.
The values for weight are in lbs./1000ft.