The Cooler,fluid,transmission, cataloged under National Stock Number 2520-01-559-6539, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Hayden Products, Llc Dba Hayden Industrial Products. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Cooler,fluid,transmission |
| FSC / FSG | 2520 — Vehicular Power Transmission Components (FSG 25) |
| Manufacturers | General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (CAGE 1EFH8); Hayden Products, Llc Dba Hayden Industrial Products (CAGE 3AZE8) |
| Parameter | Value |
|---|---|
| NSN | 2520-01-559-6539 |
| Primary Part Number | 003109 |
| Item Name | Cooler,fluid,transmission |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Hayden Products, Llc Dba Hayden Industrial Products |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3009148 | General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (USA) |
| 003109 PRIMARY | Hayden Products, Llc Dba Hayden Industrial Products (USA) |
| Reference | Meaning |
|---|---|
| 003109 | 5/9 Secondary reference Fleetpride , Inc Dba Part Distributing Co Div Southeast Region |
| 10001103 | 5/9 Secondary reference General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp |
NSN 2520-01-559-6539 is a Cooler,fluid,transmission, manufactured by Hayden Products, Llc Dba Hayden Industrial Products, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-559-6539 has 2 manufacturer part numbers on file: 3009148 (General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp), 003109 (Hayden Products, Llc Dba Hayden Industrial Products).
Possible hazard — SDS may be required (DLA HMIC P). 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.