The Air Conditioner, cataloged under National Stock Number 4120-01-281-4276, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Stellant Systems Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4120-01-281-4276 |
| Primary Part Number | 7021H |
| Item Name | Air Conditioner |
| FSC / FSG | 4120 / 41 — Air Conditioning Equipment |
| Manufacturer | Stellant Systems Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 717612209-004 | Lockheed Martin Corporation (USA) |
| 7021H PRIMARY | Stellant Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 717612209-002 | 5/9 Secondary reference Lockheed Martin Corporation |
| 8076180G002 | 5/9 Secondary reference Brooks Automation, Inc. Div Cti Cryogenics |
| 717612209-001 | 5/9 Secondary reference Lockheed Martin Corporation |
NSN 4120-01-281-4276 is a Air Conditioner, manufactured by Stellant Systems Inc, classified under FSC 4120, Air Conditioning Equipment. Status: active.
NSN 4120-01-281-4276 has 2 manufacturer part numbers on file: 717612209-004 (Lockheed Martin Corporation), 7021H (Stellant Systems Inc).
Key specifications for 7021H: Special Features: USED ON LANTIRN;INCLUDES 1 WATT SPLIT CYCLE COOLER AND DIGITAL,MINIATURTE,TIME TOTALING METER,M7793/2-002 PER MIL-M-7793. 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.
NSN 4120-01-281-4276 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.