The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-529-4740, 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 Hydac Corp. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-529-4740 |
| Primary Part Number | ELH6/1.1/H6.6S |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Hydac Corp |
| Status | ACTIVE |
| Material | STEEL HOUSING |
| 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 |
|---|---|
| ELH6/1.1/H6.6S PRIMARY | Hydac Corp (USA) |
| 02592279 | Hydac Corp (USA) |
| Reference | Meaning |
|---|---|
| OK-ELH6/1.1/H6.3S | 5/9 Secondary reference Hydac Corp |
NSN 4420-01-529-4740 is a Cooler,fluid,industrial, manufactured by Hydac Corp, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-529-4740 has 2 manufacturer part numbers on file: ELH6/1.1/H6.6S (Hydac Corp), 02592279 (Hydac Corp).
Key specifications for ELH6/1.1/H6.6S: Special Features: HEAT EXCHANGER MATERIAL: ALUMINUM; FAN MATERIAL: PLASTIC; MOTOR: ALUMINUM HOUSING, STEEL GEARS AND SHAFT; COOLER SPEC: VISCOSITY (MAX.) 2000 CST, OIL TEMPERATURE (MAX.) 266 DEG F, OPERATING PRESSURE (MAX.) 230 PSI, FLUID: MINERAL OIL TO DIN 51524; HYDRAULIC MOTOR SPEC: FILTRATION: ISO/DIS 4406 CODE 19/16-FILTRATION GRADE B25775, OUTLET PRESSURE (MAX.) 29 PSI, VISCOSITY RANGE 10-600 CST (RECOMMENDED 30-45 CST), TEMPERATURE RANGE 194 DEG F DEGF; Part Name Assigned by Controlling Agency: OIL COOLER; Material: STEEL HOUSING. 1 specification is 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.