The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-326-7097, 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 Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4420-01-326-7097 |
| Primary Part Number | AD40181-1 |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Heat Transfer Method | DIRECT |
| Length | 16.380 INCHES NOMINAL IN |
| Style Designator | COILED PLAIN TYPE |
| Diameter | 4.190 INCHES NOMINAL IN |
| Height | 4.880 INCHES NOMINAL IN |
| 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 |
|---|---|
| AD40181-1 | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 03014SSCF | 3/9 Design control — primary reference Howden Buffalo, Inc Div Howden Gyrol Fluid Drives |
NSN 4420-01-326-7097 is a Cooler,fluid,industrial, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-326-7097 has 1 manufacturer part number on file: AD40181-1 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for AD40181-1: Heat Transfer Method: DIRECT; Length: 16.380 INCHES NOMINAL IN; Style Designator: COILED PLAIN TYPE; Diameter: 4.190 INCHES NOMINAL IN. 6 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.