The Environmental Control System, cataloged under National Stock Number 4120-01-656-4366, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Tld America Corporation Div Tld America. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4120-01-656-4366 |
| Primary Part Number | ACU-302-USAF |
| Item Name | Environmental Control System |
| FSC / FSG | 4120 / 41 — Air Conditioning Equipment |
| Manufacturer | Tld America Corporation Div Tld America |
| Status | ACTIVE |
| 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 |
|---|---|
| ACU-302-USAF PRIMARY | Tld America Corporation Div Tld America (USA) |
| Reference | Meaning |
|---|---|
| ACU-302-USAF | 5/9 Secondary reference Tld Ace Corp Div Tld Ace |
| FA853316F0005 | 5/9 Secondary reference Tld Ace Corp Div Tld Ace |
NSN 4120-01-656-4366 is a Environmental Control System, manufactured by Tld America Corporation Div Tld America, classified under FSC 4120, Air Conditioning Equipment. Status: active.
NSN 4120-01-656-4366 has 1 manufacturer part number on file: ACU-302-USAF (Tld America Corporation Div Tld America).
Key specifications for ACU-302-USAF: Part Name Assigned by Controlling Agency: AIR CONDITIONER AND HEATING UNIT; End Item Identification: GROUND SUPPORT EQUIPMENT. 0 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.