The Antifreeze, cataloged under National Stock Number 6850-01-571-9656, is classified within Federal Supply Class 6850 (Miscellaneous Chemical Specialties) of the Chemicals and Chemical Products group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6850-01-571-9656 |
| Item Name | Antifreeze |
| FSC / FSG | 6850 / 68 — Miscellaneous Chemical Specialties |
| Status | ACTIVE |
| Design Type | PERMANENT |
| Quantity Within Each Unit Package | 5.0 GALLONS |
| Physical Form | LIQUID |
| Color | GREEN |
| Environmental Attribute Code | COMPREHENSIVE PROCUREMENT GUIDELINE - VEHICULAR PRODUCTS - ENGINE COOLANTS |
| Arctic Graded Feature | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC D) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AA52624-1B | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| A-A-52624 TY 1B RECYCLED CL | 5/1 Secondary reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
NSN 6850-01-571-9656 is a Antifreeze, classified under FSC 6850, Miscellaneous Chemical Specialties. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 6850-01-571-9666, 6850-01-571-9668. Verify interchangeability with system specifications before substitution.
Key specifications for 6850-01-571-9656: Design Type: PERMANENT; Quantity Within Each Unit Package: 5.0 GALLONS; Physical Form: LIQUID; Color: GREEN. 6 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC D). 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.