FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
General Description
The Air Conditioner, cataloged under National Stock Number 4120-01-522-6381, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4120-01-522-6381
Item Name
Air Conditioner
FSC / FSG
4120 / 41 — Air Conditioning Equipment
Status
ACTIVE
Power Source
DIESEL ENGINE
Surface Treatment
PAINT
Mounting Type
TRAILER
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
DAC110
5/9Secondary reference
U.S. Government activity
A-A-59506
4/1Identification reference
Federal Commercial Item Description Promulgated by General Services Administration Washington DC
No interchangeability data on file.
Other items in FSC 4120 — Air Conditioning Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4120-00-000-0076
4120-00-000-0076 · Item name not on file
4120-00-001-8402
4120-00-001-8402 · Item name not on file
4120-00-001-8403
4120-00-001-8403 · Item name not on file
4120-00-006-6074
4120-00-006-6074 · Item name not on file
4120-00-010-1372
4120-00-010-1372 · Item name not on file
4120-00-011-3383
4120-00-011-3383 · Item name not on file
4120-00-011-3387
4120-00-011-3387 · Item name not on file
4120-00-011-3388
4120-00-011-3388 · Item name not on file
Frequently Asked Questions
What is NSN 4120-01-522-6381?
NSN 4120-01-522-6381 is a Air Conditioner, classified under FSC 4120, Air Conditioning Equipment. Status: active.
What are the specifications of 4120-01-522-6381?
Key specifications for 4120-01-522-6381: Power Source: DIESEL ENGINE; Special Features: MIN.COOLING CAPACITY:1,320,000/MIN.HEATING CAPACITY:750,000BTU; Surface Treatment: PAINT; Mounting Type: TRAILER. 3 specifications are documented in the U.S. Government catalog.
Is NSN 4120-01-522-6381 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.