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Thermocouple Accessories

Furnace Parts LLC offers a wide variety of hardware and accessories, including heads and blocks, plugs and jacks, tube adapters and compression fittings. Our hardware is offered for efficiency, convenience and added value.

  • Heads: Iron, steel, aluminum, explosion proof, mini-aluminum and polymer.
  • Blocks: Numerous configurations of single and dual ceramic blocks designed to fit various heads.
  • Connectors: Plugs and jacks (low-temp, ceramic, mini, jab-in, three-pole, dual), Fast-Fix host junction connectors, wafer heads and panel strips.
  • Ceramic Insulators: Manufactured in a wide range of diameters, bore sizes and configurations, ceramic insulators are available in alumina, mullite and hafnia.
  • Metal Protection Tubes: Manufactured metal protection tubes in many different materials. A large inventory of raw materials is available, allowing us to respond quickly and efficiently to customer needs.

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Noble and Base Metal Thermocouple Hardware (843-CI)

Noble Metal Thermocouple Hardware

Noble and Base Metal Thermocouple Hardware (843)

Base Metal Thermocouple Hardware


Search  Base Metal Thermocouple Hardware - 26 Items

770 K Standard Quick Disconnect Plug

Mineral Insulated (MgO) Thermocouples Hardware


Search  Mineral Insulated (MgO) Thermocouples Hardware - 48 Items

720 1/4 inch x 1/4 inch Compression Fitting

Thermcouple Mounting Fittings


Search  Thermcouple Mounting Fittings - 44 Items

Thermocouple Weld Pads

Thermocouple Weld Pads

Weld pads are used facilitate the welding of MgO thermocouples to surfaces such as pipes or tubes, among other surfaces. Typical weld pads are 1" square x 1/8" thick and are manufactured in the same material as the MgO sheath. Custome sizes are available based upon application requirements.
720 1/4 inch x 1/4 inch Compression Fitting

Compression Fittings

Compressions fittings are available in many sizes and materials. We offer common NPT thread sizes, including 1/16", 1/8", 3/16" and 1/4", and can also provide less common sizes as well. Compression fittings are stocked in a variety of bore sizes, and with both steel and teflon ferrules, allowing the conveneince of either a fixed or adjustable mounting of your thermocouple immersion depths.

Search  Compression Fittings - 17 Items

Ceramic Insulators

Thermocouple Ceramic Insulators

Ceramic insulators are stocked in a wide variety of sizes, lengths and materials. Contact us today with your requirements, and we will be delighted to assist.
Metal, Ceramic & Molybdenum Protection Tubes (622, 624)

Metal Protection Tubes

Protection tubes are offered in Inconel, 300 and 400 series stainless steels, cast iron and carbon steels. Tubes are avaialble in both open and closed ends, adding further protection to your thermocouple assemblies. Tubes are available in a wide range of diameters, bore sizes and lengths to meet your demands.

Metal Protection Tubes: Furnace Parts LLC has a large inventory of raw materials on hand at all times, allowing us to respond quickly and efficiently to your needs.

Where corrosion resistance or high temperature resistance is a concern, Furnace Parts offers protection tubes in various stainless steel grades: 304, 316, 446 and inconel 600 & 601, in a variety of wall thicknesses. We also manufacture carbon steel ...
Thermocouple Bushings

Thermocouple Bushings

Nonferrous Protection Tubes (Cerite® III)

Nonferrous Protection Tubes

Fast Fix Thermocouple Connectors

Fast Fix Thermocouple Connectors

Fast Fix thermocouple connectors provide a rapid, consistent and inexpensive way to create quality hot junctions for base metal thermocouples and insulated thermocouple wire. Applied with a Crimp Tool, Fast Fix makes uniform junctions that do not require the time, experience and welding equipment necessary for welded thermocouple hot junctions. Fast Fix connectors are usable with E, J, K, N, and T calibrations; and can be used with wire sizes from 8 to 30 gauge. Crimp Tools are available for use with Fast Fix connectors, allowing for a precision pressure fit, creating a consistent hot thermocouple junction.