MIL-W-5846 Thermocouple Extension Cable

Partner with Frigate for high-reliability MIL-W-5846 thermocouple extension cables, precision-engineered to sustain critical temperature data integrity in harsh aerospace and defense environments. Our military-grade cables ensure seamless, low-error signal transmission between engine sensors and instrumentation instrumentation disks under extreme thermal stress.

Military Specification

MIL-W-5846

Calibration Type

Type K (Chromel / Alumel)

Conductor Materials

Chromel (Positive leg) / Alumel (Negative leg)

Temperature Range

Continuous -55C to +200C (Intermittent up to +260° C)

Voltage Rating

600 Volts RMS maximum

*Note: Listed timeframes are indicative ranges based on standard material availability; exact delivery schedules will be locked in upon formal RFQ evaluation.

Product Description

Frigate’s MIL-W-5846 thermocouple extension cables are specialized, high-accuracy links explicitly designed to extend temperature sensor signals without introducing thermal EMF errors. Built to rigid defense standards, these cables provide the rugged durability and precise shielding required for volatile aerospace engine testing and exhaust monitoring.

Insulation Material

Extruded PTFE (Polytetrafluoroethylene) or fused Kapton tape

Jacket Material

High-density braided fiberglass with silicone/PTFE impregnant

Shielding Options

Stainless steel braid, tin-plated copper, or silver-plated copper

Conductor Configuration

Solid or stranded (commonly 16 AWG to 24 AWG)

Limits of Error

Conforms to ASTM E230 Standard Tolerances / Special Limits

Corrosion Resistance

Excellent resistance to aviation fuels, hydraulic fluids, and solvents

Flame Retardancy

Self-extinguishing, meets strict military flame propagation tests

Tensile Strength

High-strength core structures tailored for high-vibration airframe routing

Identification

Color-coded according to military standards (M5846 markers)

Quality Compliance

AS9100 Rev D certified production, fully traceable melt lots

Technical Advantages

By utilizing exact match-grade Chromel-Alumel conductors and high-density outer braiding, Frigate minimizes signal attenuation and eliminates ambient electromagnetic interference in high-density wiring harnesses. The advanced PTFE and fiberglass insulation systems resist chemical degradation from jet fuels and hydraulic fluids while maintaining flexibility at sub-zero temperatures.

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Industry Applications

Military Airframe Wire Harnesses

Provides accurate exhaust gas temperature (EGT) data transmission from jet engines to cockpit avionics, surviving high-vibration airframe environments.

Missile & UAV Thermal Telemetry

Delivers lightweight, ultra-reliable temperature monitoring for critical internal guidance systems and propulsion compartments during high-velocity flight.

Aerospace Test Cells & Benches

Acts as the vital instrumentation link in developmental engine test cells, handling rapid thermal cycling during rigorous turbine validation trials.

Naval Propulsion System Monitoring

Tracks localized thermal variations in marine gas turbines and heavy machinery, offering superior resistance to salt-fog and high-humidity corridors.

Industrial Vacuum Furnace Control

Ensures precise heat treatment data logs for defense-grade metallurgy operations where thermal overshoot can compromise structural component integrity.

Cryogenic Equipment Sensing

Maintains signal precision and structural flexibility in extreme low-temperature fuel storage systems, preventing insulation embrittlement.

Frigate Approved Quality Management System

At Frigate, quality is built into every stage of manufacturing. Our approved Quality Management System ensures that every material component.

Incoming Material Checking

Before production begins, all incoming materials are checked against specifications, drawings, and supplier documents.

In-Process Inspection

Quality is monitored during manufacturing to prevent defects and maintain process consistency.

Final Dimensional Checking

Finished parts are inspected before dispatch to confirm compliance with customer drawings and tolerances.

Packaging Control

Finished components are packed safely to prevent damage during handling and transportation.

Incoming Material Checking

In-Process Inspection

Final Dimensional Checking

Packaging Control

Quality Document

To help buyers evaluate our quality systems, we provide sample documents that reflect our inspection and reporting standards.

How We Delivered

Complex geometries engineered solutions that move businesses forward.

Solar Inverter Enclosure

units per month

Bento Boxes for D2C Segment

Units Manufactured Monthly

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Defence-Grade Cable Supply

Cost savings

0 %

Flange Assembly for Pump

Faster Production

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Having Doubts? Our FAQ

Can Frigate provide full material traceability and certificate of compliance (CoC) for MIL-W-5846 cables?

Yes. Every batch of MIL-W-5846 thermocouple extension cable shipped by Frigate comes with comprehensive material test reports, heat lot traceability, and a formal Certificate of Conformance stating strict adherence to military standards.

How do your custom shielding configurations handle high-EMI environments in military aircraft?

We offer optimized braided shielding options—including stainless steel, silver-plated copper, or specialized double-shielding. These configurations maximize electromagnetic and radio-frequency interference (EMI/RFI) attenuation, keeping the sensitive low-voltage thermocouple signal clean as it routes past high-power radar and avionic lines.

Our project requires non-standard stranding and specific color coding; can you accommodate custom RFQs?

Absolutely. While we manufacture to the baseline MIL-W-5846 standard, Frigate specializes in custom engineering. We can modify conductor stranding for high-flex applications or adapt the outer jacket identification markers to align with your internal defense program’s specific wiring schema.

What steps does Frigate take to ensure the limits of error do not deviate across long cable lengths?

We meticulously source matched-conductor pairs from single melt batches to prevent internal thermal gradients. Throughout production, we conduct continuous calibration testing against ASTM E230 standards to ensure uniform, tight-tolerance EMF output across the entire length of the spool.

How do these cables perform when exposed to synthetic aviation lubricants and hydraulic fluids?

Our MIL-W-5846 cables feature high-grade extruded PTFE insulation and silicone-impregnated glass jackets. This construction creates an impermeable barrier against aggressive chemical agents, including jet fuels, and solvents, preventing insulation breakdown or chemical swelling.

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Components Built for Critical Performance

Engineered Products for Critical Applications

MIL-W-5846 Thermocouple Extension Cable

Product Description

Insulation Material

Jacket Material

Shielding Options

Conductor Configuration

Limits of Error

Corrosion Resistance

Flame Retardancy

Tensile Strength

Identification

Quality Compliance

Technical Advantages

Let's Get Started

Industry Applications

Frigate Approved Quality Management System

Quality Document

How We Delivered

Having Doubts? Our FAQ

We'd love to Manufacture for you!

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

Get Your Quote Now

MIL-W-5846 Thermocouple Extension Cable

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MIL-W-5846 Thermocouple Extension Cable

Get Latest Price