The Cooler,fluid,industrial, cataloged under National Stock Number 4420-00-360-2181, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is General Motors Corp. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4420-00-360-2181 |
| Primary Part Number | 8502798 |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Effective Heat Transfer Surface Area | 23.2 SQUARE FEET |
| Tube Quantity | 48 |
| Tube Attachment Method | SOLDERED BOTH ENDS |
| Nondefinitive Spec/std Data | B TYPE |
| Material | COPPER AND NICKEL ALLOY TUBES |
| Material | COPPER ALLOY 905 SHELL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8501956 | General Motors Corp (USA) |
| 8502798 PRIMARY | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| A8501956 | 5/9 Secondary reference General Motors Corp |
| N9908-1 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| MILC15730 | 4/1 Identification reference U.S. Government activity |
| A3225 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| A8501956 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| N9908-1 | 5/9 Secondary reference General Motors Corp |
| A3225 | 5/9 Secondary reference General Motors Corp |
| 8501956 | 5/9 Secondary reference General Motors Corp Harrison Radiator Div |
NSN 4420-00-360-2181 is a Cooler,fluid,industrial, manufactured by General Motors Corp, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-00-360-2181 has 2 manufacturer part numbers on file: 8501956 (General Motors Corp), 8502798 (General Motors Corp).
5 possible matches (shared part number, not a government interchangeability claim): 2510-00-772-9567, 2510-00-774-1430, 6685-00-780-6567. Verify interchangeability with system specifications before substitution.
Key specifications for 8502798: Heat Transfer Method: INDIRECT; Effective Heat Transfer Surface Area: 23.2 SQUARE FEET; Tube Quantity: 48; Tube Attachment Method: SOLDERED BOTH ENDS. 7 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.