The Air Cooler H501, cataloged under National Stock Number 1680-01-663-6775, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Kato Engineering Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Air Cooler H501 |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | Kato Engineering Inc. (CAGE 32770); General Atomics Dba General Atomics Corp (CAGE 4V360) |
| Parameter | Value |
|---|---|
| NSN | 1680-01-663-6775 |
| Primary Part Number | 155-2200-03 |
| Item Name | Air Cooler H501 |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Kato Engineering Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 155-2200-03 PRIMARY | Kato Engineering Inc. (USA) |
| 155-2200-03 PRIMARY | General Atomics Dba General Atomics Corp (USA) |
| Reference | Meaning |
|---|---|
| 09-8347 | 5/9 Secondary reference Thermofina S a R L |
NSN 1680-01-663-6775 is a Air Cooler H501, manufactured by Kato Engineering Inc., classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-663-6775 has 2 manufacturer part numbers on file: 155-2200-03 (Kato Engineering Inc.), 155-2200-03 (General Atomics Dba General Atomics Corp).
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.