The Air Conditioners, cataloged under National Stock Number 4120-01-471-1877, 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1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4120-01-471-1877 |
| Item Name | Air Conditioners |
| FSC / FSG | 4120 / 41 — Air Conditioning Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | ESTABLISHED FOR GSA CUSTOMERS UNABLE TO ORDER AAC I NSNS THRU NORMAL FEDSTRIP/MILSTRIP PROCEDURES; SPECIFY MAKE AND MODEL NUMBER OF APPLIANCE AS EXCEPTION DATA ON REQUISITION; PLEASE NOTE THAT THE PRICE LISTED ON THIS NSN IS AN AVERAGE PRICE; CONTACT SUPPLIER FOR EXACT PRICING INFORMATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SPECIFY ON REQUISITION | 3/1 Design control — primary reference U.S. Government activity |
NSN 4120-01-471-1877 is a Air Conditioners, classified under FSC 4120, Air Conditioning Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3930-01-496-0409. Verify interchangeability with system specifications before substitution.
Key specifications for 4120-01-471-1877: General Characteristics Item Description: ESTABLISHED FOR GSA CUSTOMERS UNABLE TO ORDER AAC I NSNS THRU NORMAL FEDSTRIP/MILSTRIP PROCEDURES; SPECIFY MAKE AND MODEL NUMBER OF APPLIANCE AS EXCEPTION DATA ON REQUISITION; PLEASE NOTE THAT THE PRICE LISTED ON THIS NSN IS AN AVERAGE PRICE; CONTACT SUPPLIER FOR EXACT PRICING INFORMATION. 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.