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These wires have two layers of FEP/polyimide tape insulation with a polyimide hard coat (10 AWG and smaller) or Polyamide braid (8 AWG and larger) for increased cut-through and abrasion resistance.
Unit of Measure
Items
MIL-W-81381 MIL/Aero Wire

MIL-DTL-81381/12 Wire - Medium Weight

MIL-W-81381 MIL/Aero Wire

MIL-DTL-81381/12 Wire - Medium Weight

MIL-W-81381 MIL/Aero Wire

MIL-DTL-81381/12 Wire - Medium Weight

MIL-W-81381 MIL/Aero Wire

MIL-DTL-81381/12 Wire - Medium Weight

MIL-W-81381 MIL/Aero Wire

MIL-DTL-81381/12 Wire - Medium Weight
Voltage Rating N/A 600 V
Insulation N/A 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 N/A Nickel-Plated Copper
Conductor Size N/A 2 AWG N/A 4 AWG N/A 6 AWG N/A 8 AWG N/A 10 AWG
Min. Conductor Dia. N/A 0.320 in8.13 mm N/A 0.250 in6.35 mm N/A 0.198 in5.03 mm N/A 0.158 in4.01 mm N/A 0.106 in2.69 mm
Max. Conductor Dia. N/A 0.340 in8.64 mm N/A 0.268 in6.81 mm N/A 0.212 in5.38 mm N/A 0.169 in4.29 mm N/A 0.112 in2.84 mm
Stranding N/A 665/30 N/A 133/25 N/A 133/27 N/A 133/29 N/A 37/26
Min. Insulation Diameter N/A 0.350 in8.89 mm N/A 0.280 in7.11 mm N/A 0.228 in5.79 mm N/A 0.188 in4.78 mm N/A 0.122 in3.10 mm
Max. Insulation Diameter N/A 0.378 in9.60 mm N/A 0.306 in7.77 mm N/A 0.251 in6.38 mm N/A 0.206 in5.23 mm N/A 0.129 in3.28 mm
Max. Resistance per 1000 ft. @ 20°C N/A 0.177 ohms N/A 0.275 ohms N/A 0.436 ohms N/A 0.694 ohms N/A 1.24 ohms
Max. Resistance per Km @20°C N/A 0.580 ohms N/A 0.900 ohms N/A 1.430 ohms N/A 2.280 ohms N/A 4.070 ohms
Temperature Rating N/A -55 to 200 ºC
Weight N/A 235.0 lb/1000 ft.347.80 kg/1000 m. N/A 148.0 lb/1000 ft.219.00 kg/1000 m. N/A 95.1 lb/1000 ft.140.70 kg/1000 m. N/A 61.8 lb/1000 ft.91.50 kg/1000 m. N/A 32.4 lb/1000 ft.19.50 kg/1000 m.