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M17/RG-142 M17/RG-178 M17/RG-179 M17/RG-303 M17/RG-316 M17/RG-393 M17/RG-400

High Temp Coax & MIL-C-17 Cables – Military-Spec Performance for RF Applications

High temperature coaxial cables built to MIL-C-17 specifications offer rugged construction, thermal stability, and consistent electrical performance. These cables are used in aerospace, defense, industrial RF, and amateur radio applications where reliability under extreme conditions is essential.

Why Use MIL-C-17 and High Temp Coax?

  • PTFE dielectric: Delivers excellent thermal stability and high frequency performance
  • Military-grade standards: Built to strict MIL-C-17 specs for precision and reliability
  • Ideal for RF exposure environments: Heat-resistant jacketing and shielding for rugged duty

Available High Temp / MIL-C-17 Coax Models

  • RG-142 Double Shielded Coax
  • RG-400 High Temp Coax
  • RG-58 MIL-C-17 Coax
  • RG-8/U MIL-Spec Coax
  • RG-316 Ultra Thin High Temp Coax
  • RG-393 PTFE Jacketed High-Power Coax
  • RG-214 Dual Silver Braid Shield Coax

Engineered for Critical Applications

Whether you're working in high-heat environments, building RF test equipment, or installing premium-grade station feedlines, our MIL-C-17 coaxial cables deliver dependable performance in mission-critical RF systems.
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High Temp M17-RG142 High Temp M17-RG178 High Temp M17-RG17 High Temp M17-RG303
High Temp M17-RG142 Coax 25 FT
Our price: $91.13
Sale Price: $89.13
Savings: $2.00
High Temp M17-RG303 Coax 25 FT
Our price: $73.58
Sale Price: $71.58
Savings: $2.00

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RG142 Solid silver-coated copper clad steel conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and 2 overall shields of silver-coated copper. M17/93-RG178 - 7/.0040 silver-coated copper clad steel conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and an overall braid shield of 38 AWG silver-coated copper braid. M17/94-RG179 Made up of  7/.0040 silver-coated copper clad steel conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and an overall braid shield of 38 AWG silver-coated copper braid. M17/111-RG303 Solid silver-coated copper clad steel conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and an overall braid shield of 36 AWG silver-coated copper braid shield
High Temp M17-RG393 High Temp M17-RG400 High Temp M17-RG393 High Temp M17-RG142
High Temp M17-RG400 Coax 25 FT
Our price: $90.17
Sale Price: $88.17
Savings: $2.00
High Temp M17-RG142 Coax 50 FT
Our price: $182.25
Sale Price: $180.25
Savings: $2.00
M17/127-RG393 Made up of a 7/.0312 silver-coated copper conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and 2 overall shields of 34 AWG silver-coated copper braid shields. M17/128-RG400 Made up of  9/.0080 silver-coated copper conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and 2 overall shields of 36 AWG silver-coated copper braid shields. M17-RG393 "Sold By The Foot" RG142 Solid silver-coated copper clad steel conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and 2 overall shields of silver-coated copper.
High Temp M17-RG142 High Temp M17-RG142 High Temp M17-RG142 High Temp M17-RG142
High Temp M17-RG142 Coax 75 FT
Our price: $273.38
Sale Price: $270.38
Savings: $3.00
High Temp M17-RG142 Coax 100 FT
Our price: $364.50
Sale Price: $359.50
Savings: $5.00
High Temp M17-RG142 Coax 150 FT
Our price: $546.75
Sale Price: $538.75
Savings: $8.00
RG142 Solid silver-coated copper clad steel conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and 2 overall shields of silver-coated copper. RG142 Solid silver-coated copper clad steel conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and 2 overall shields of silver-coated copper. RG142 Solid silver-coated copper clad steel conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and 2 overall shields of silver-coated copper. RG142 Solid silver-coated copper clad steel conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and 2 overall shields of silver-coated copper.
High Temp M17-RG142 High Temp M17-RG142 High Temp M17-RG178 High Temp M17-RG178
High Temp M17-RG142 Coax 200 FT
Our price: $729.00
Sale Price: $719.00
Savings: $10.00
RG142 Solid silver-coated copper clad steel conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and 2 overall shields of silver-coated copper. RG142 Solid silver-coated copper clad steel conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and 2 overall shields of silver-coated copper. M17/93-RG178 - 7/.0040 silver-coated copper clad steel conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and an overall braid shield of 38 AWG silver-coated copper braid. M17/93-RG178 - 7/.0040 silver-coated copper clad steel conductor with a polytetrafluoroethylene (PTFE) dielectric, fluorinated ethylene propylene (FEP) jacket, and an overall braid shield of 38 AWG silver-coated copper braid.