The Air Conditioner, cataloged under National Stock Number 4120-01-203-8656, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Applied Companies. Government technical data includes 17 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4120-01-203-8656 |
| Primary Part Number | 3771 |
| Item Name | Air Conditioner |
| FSC / FSG | 4120 / 41 — Air Conditioning Equipment |
| Manufacturer | Applied Companies |
| Status | ACTIVE |
| Phase | SINGLE |
| Coolant Type | FREON-13 |
| Current Type | AC |
| Power Source | ELECTRIC MOTOR |
| Nominal Heating Capacity | 260.0 CUBIC FEET PER MINUTE |
| Cooling Capacity in Btu Per Hour | 6000.0 NOMINAL |
| Heating Capacity in Btu Per Hour | 4500.0 NOMINAL |
| Electric Motor Quantity | 2 |
| Nominal Cooling Capacity | 260.0 CUBIC FEET PER MINUTE |
| Surface Treatment | ENAMEL |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM |
| Usage Design | FAN,COMPRESSOR |
| Cabinet Material | ALUMINUM-COPPER FREE |
| Mounting Type | FLOOR OR WALL |
| Voltage Rating | 115.0 VOLTS NOMINAL |
| Condenser Cooling Type | AIR |
| Compressor Unit Type | CLOSED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 3771 PRIMARY | Applied Companies (USA) |
NSN 4120-01-203-8656 is a Air Conditioner, manufactured by Applied Companies, classified under FSC 4120, Air Conditioning Equipment. Status: active.
NSN 4120-01-203-8656 has 1 manufacturer part number on file: 3771 (Applied Companies).
2 possible matches (shared part number, not a government interchangeability claim): 5998-01-240-4771, 6515-01-476-4016. Verify interchangeability with system specifications before substitution.
Key specifications for 3771: Phase: SINGLE; Coolant Type: FREON-13; Current Type: AC; Power Source: ELECTRIC MOTOR. 17 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.