PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T-3-1Heat Transfer Fluid

Thermon Manufacturing Company Div Thermon Holdings, Llc · NSN 6850-01-710-7881 · FSC 6850 · No Item Name Available
Verified by PartsTable
NSN 6850-01-710-7881 — this item is cataloged by the U.S. Government under National Stock Number 6850-01-710-7881. Primary manufacturer part number: T-3-1.
Features
  • Heat Transfer Fluid — FSC 6850
  • 2 verified cross-references
  • Primary manufacturer: Thermon Manufacturing Company Div Thermon Holdings, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heat Transfer Fluid, cataloged under National Stock Number 6850-01-710-7881, is classified within Federal Supply Class 6850 (No Item Name Available) of the Chemicals and Chemical Products group. The primary manufacturer of record is Thermon Manufacturing Company Div Thermon Holdings, Llc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6850-01-710-7881
Primary Part NumberT-3-1
Item NameHeat Transfer Fluid
FSC / FSG6850 / 68 — No Item Name Available
ManufacturerThermon Manufacturing Company Div Thermon Holdings, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4910-00-387-9587 INTERCHANGEABLE
Holder,magneto Drive
6625-00-509-1490T31 INTERCHANGEABLE
Test Set,electrical Power
Avtron Aerospace Inc
2940-00-541-5918C145E INTERCHANGEABLE
Filter Element,fluid
Honeywell International Inc Dba Honeywell Div Consumer Products Group
8105-01-700-7163 INTERCHANGEABLE
Bag,textile
Cross-Reference Index
Part NumberManufacturer
56-01-8603 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
T-3-1 PRIMARY Thermon Manufacturing Company Div Thermon Holdings, Llc (USA)
Related Parts
4910-00-387-9587INTERCHANGEABLE
HOLDER,MAGNETO DRIVE
6625-00-509-1490INTERCHANGEABLE
TEST SET,ELECTRICAL POWER
T31
2940-00-541-5918INTERCHANGEABLE
FILTER ELEMENT,FLUID
C145E
8105-01-700-7163INTERCHANGEABLE
BAG,TEXTILE

Frequently Asked Questions

What is NSN 6850-01-710-7881?

NSN 6850-01-710-7881 is a Heat Transfer Fluid, manufactured by Thermon Manufacturing Company Div Thermon Holdings, Llc, classified under FSC 6850 (No Item Name Available). Status: active.

What are the part numbers for NSN 6850-01-710-7881?

NSN 6850-01-710-7881 has 2 cross-referenced part numbers: 56-01-8603 (Electric Boat Corporation Div General Dynamics Electric Boat), T-3-1 (Thermon Manufacturing Company Div Thermon Holdings, Llc).

What NSN replaces 6850-01-710-7881?

There are 4 known substitutes for 6850-01-710-7881: 4910-00-387-9587, 6625-00-509-1490, 2940-00-541-5918 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T-3-1?

Key specifications for T-3-1: Part Name Assigned by Controlling Agency: HEAT TRANSFER COMPOUND; Special Features: PHYSICAL STATE: LIQUID; APPEARANCE: CHARCOAL GRAY PASTE; COLOR: CHARCOAL GRAY; PH SOLUTION: 10-12; FREEZING POINT: 32.0 DEG F; BOILING POINT: 214.0 - 216.0 DEG F AT 14.7 PSI; SOLUBILITY: 50 PERCENT SOLUBLE IN WATER; VOC CONTENT: 0.0; CONDITIONS TO AVOID: HIGH TEMPERATURE WILL CAUSE A HARDENING EFFECT THAT IS INTENDED PER THE USE OF PRODUCT, THERE IS NO KNOWN EFFECT ON THE MATERIAL WITH EXPOSURE TO LIGHT OR SHOCK; INCOMPATIBLE MATERIALS: THE UNCURED COMPOUND TURNS TO A GEL AND GENERATES HEAT WHEN MIXED WITH ACID, COMPOUND MAY REACT WITH AMMONIUM SALTS RESULTING IN EVOLUTION OF AMMONIA GAS, COMPOUND CAN REACT WITH SUGAR RESIDUES TO FORM CARBON MONOXIDE; DEGF. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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