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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 Temperature Coax – MIL-C-17 Specified Cable

Our High Temp Coaxial Cables meet strict MIL-C-17 specifications, making them the preferred choice for aerospace, defense, and demanding RF environments. Designed for thermal stability and electrical consistency, these cables deliver mission-critical performance across a wide range of applications.

Features & Benefits:

  • ✅ Complies with MIL-C-17 military-grade specifications
  • ✅ PTFE dielectric and silver-plated conductors for high heat tolerance
  • ✅ Maintains consistent 50 Ohm impedance and low signal loss
  • ✅ Abrasion, fluid, and UV-resistant outer jackets
  • ✅ Excellent shielding for EMI/RFI rejection

Available MIL-C-17 Subcategories:

  • ✅ RG-142B/U – Dual shielded silver-plated coax, ideal for RF lab and antenna systems
  • ✅ RG-400/U – Flexible high-temp cable used in avionics and RF communications
  • ✅ RG-393/U – Heavy-duty PTFE cable rated for harsh outdoor and industrial environments

Typical Applications:

  • ✅ Military RF systems and tactical field communications
  • ✅ Aerospace & aviation electronics
  • ✅ Radar, satellite, and RF test equipment
  • ✅ High-temperature industrial and marine environments

We offer a range of MIL-C-17 coax cable types by the foot or in custom lengths. Contact us for volume pricing, technical assistance, or help choosing the right cable for your mission-critical needs.

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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: $167.15
Sale Price: $161.14
Savings: $6.01
High Temp M17-RG303 Coax 25 FT
Our price: $87.57

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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: $145.26
Sale Price: $140.03
Savings: $5.23
High Temp M17-RG142 Coax 50 FT
Our price: $334.30
Sale Price: $322.27
Savings: $12.03
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. M17/127-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. 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: $501.44
Sale Price: $483.40
Savings: $18.04
High Temp M17-RG142 Coax 100 FT
Our price: $668.59
Sale Price: $644.54
Savings: $24.05
High Temp M17-RG142 Coax 125 FT
Our price: $835.74
Sale Price: $805.68
Savings: $30.06
High Temp M17-RG142 Coax 150 FT
Our price: $1,002.88
Sale Price: $966.81
Savings: $36.07
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 175 FT
Our price: $1,170.03
Sale Price: $1,127.94
Savings: $42.09
High Temp M17-RG142 Coax 200 FT
Our price: $1,337.18
Sale Price: $1,289.08
Savings: $48.10
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.