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MIL-SPEC Thermocouple Contacts - M39029 Military Custom Manufacturing & Distribution

Unique Expertise Yields Unparalleled Quality

Our Strengths 2We manufacture high-precision, high-reliability electrical connector contacts with our expertise being primarily centered on the thermocouple industry. We make available a full range of MIL-SPEC high quality thermocouple crimp contacts in the most popular thermocouple materials, while satisfying completely the most stringent M39029 requirements.

Using state of the art CNC and Cam machines we produce thermocouple, coaxial, power/signal and specialty contacts. In addition to the M39029 series of military contacts, we also manufacture and distribute contacts for numerous connector series made by other manufacturers. By bringing to bear our advanced engineering and most up-to-date-manufacturing techniques, we assure complete functional interchangeability with the original manufacturers’ counterparts. By ordering thermocouple contacts separately, engineers can quickly create custom connector solutions to run power, signal, and thermocouples in one cable

We are one of the only manufactures that produces all of their MIL-SPEC contacts in-house - from blank to finished product.  Our vast knowledge and deep level of experience in the “Electrical Contact” manufacturing field allows us to provide competitive pricing while maintaining an extremely high standard of quality. Whether your demands are large or small, we can produce whatever quantity meets your specific requirements.

ThermocouplesMilitary Thermocouple Contacts Cross Reference and Mil-Spec Thermocouple Contacts Catalog

Please visit our Contact Selection Guide pages: | M39029/9 to M39029/28 | M39029/31 to M39029/60 | M39029/72 to M39029/77 | M39029/85 to M39029/89 | M39029/90 to M39029/107 | All military contacts can be identified by the AS39029 Series suffix (M39029/XX) and BIN Code number. Also, each contact has one or more former Military Part Number(s) which can also be used for identification. You can download a Full PDF Version of the Catalog here . The catalog offers the full spectrum of military Thermocouple Contacts manufactured to mil-spec standards like: MIL-DTL-26500, MIL-C-26518, MIL-C-81703 Series II, MIL-DTL-24308, MIL-DTL-55302/68, MIL-DTL-83733, Series III DOD-C-83527, MIL-DTL-38999 I, II, III & IV, AS50151, MS3450, MIL-DTL-83723 Series II, MIL-DTL-38999 Series I, II, III & IV, MIL-DTL-29600, MIL-DTL-33999, etc.


Most Widespread Thermocouple Types

Certain combinations of alloys have become popular as industry standards for thermocouples. The most common thermocouples today are K, T, J and E, but other calibrations are also available. Each calibration offers a specific temperature range and must be selected carefully to coincide with the environment in which it will be used.


  • Type K Thermocouples. Material: chromel- alumel, Connector Operating Temperature:  200DegC.  It is the most common thermocouple with a sensitivity of approximately 41 V/C
  • Type T Thermocouples. Material: copper - constantan, Connector Operating Temperature:  200DegC, Sensitivity:  about 43 V/C, Non-magnetic
  • Type J Thermocouples. Material: constantan - iron, Connector Operating Temperature:  200DegC,  Higher sensitivity of about 50 V/C.,
  • Type E Thermocouples. Material: chromelconstantan, High sensitivity of about 68 V/C.


Relevant MIL-SPEC Thermocouple Standards and Application Areas:

MIL-C-5015, MIL-DTL-38999, M39029, AS39029, MIL-DTL-26482, MIL-DTL-22992, MIL-DTL-83723, M39029 /  AS39029 Military contacts, Military thermocouples, Harsh environment thermocouples, AS39029 connector contacts, Aerospace & Military Connectors, High-precision electrical connectors,   Thermocouple connectors, Mil-Spec cable assemblies, Aerospace & Military thermocouples, M39029 Mil contacts, thermocouple manufacturers.  

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MIL-SPEC Thermocouple Contacts at Highest Quality and Lower Cost

We are dedicated to providing our customers with innovative, highest quality, cost-effective MIL-SPEC thermocouple contacts. By combining the latest computerized automation with precision manufacturing techniques, we’re able to manufacture contacts more efficiently, more precisely, less expensively and with more uniformity, reliability and overall quality than ever before. Our depth of experience in designing and manufacturing thermocouple contacts for military and space applications empowers us to be a very effective member of ANY product team. Make us a member of YOURS!

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