The Heat Transfer Fluid, cataloged under National Stock Number 6850-01-617-9764, is classified within Federal Supply Class 6850 (Miscellaneous Chemical Specialties) of the Chemicals and Chemical Products group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6850-01-617-9764 |
| Item Name | Heat Transfer Fluid |
| FSC / FSG | 6850 / 68 — Miscellaneous Chemical Specialties |
| Status | ACTIVE |
| Level of Dermal Irritation Potential | SLIGHT |
| Hazardous Substances | ETHYLENE GLYCOL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 6647765-2 | 3/2 Design control — primary reference U.S. Government activity |
| 2800109-PC | 3/2 Design control — primary reference U.S. Government activity |
NSN 6850-01-617-9764 is a Heat Transfer Fluid, classified under FSC 6850, Miscellaneous Chemical Specialties. Status: active.
Key specifications for 6850-01-617-9764: Level of Dermal Irritation Potential: SLIGHT; Hazardous Substances: ETHYLENE GLYCOL; Special Features: FLASH POINT: 126.70; VAPOR DENSITY: >1.0; SPECIFIC GRAVITY: 1.093; FREEZING POINT: -19.4 DEG. C.; SOLUBILITY IN WATER: 100%; PH: 9.5; VISCOSITY: 4.52 CPS AT 25.00 DEG. C.; APPEARANCE: PINK LIQUID;; Part Name Assigned by Controlling Agency: HUBTHERM RCI. 2 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.