The Air Conditioner, cataloged under National Stock Number 4120-01-210-1971, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4120-01-210-1971 |
| Item Name | Air Conditioner |
| FSC / FSG | 4120 / 41 — Air Conditioning Equipment |
| Status | ACTIVE |
| Nondefinitive Spec/std Data | 5.0 TON SIZE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Reference | Meaning |
|---|---|
| MIL-A-19865 | 4/1 Identification reference U.S. Government activity |
NSN 4120-01-210-1971 is a Air Conditioner, classified under FSC 4120, Air Conditioning Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4120-01-210-1972. Verify interchangeability with system specifications before substitution.
Key specifications for 4120-01-210-1971: Nondefinitive Spec/std Data: 5.0 TON SIZE. 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.