PartsTable TECHNICAL DATA SHEET
NSN 4120-01-554-1860Government record, cited

Air Conditioner4120-01-554-1860

NSN 4120-01-554-1860 · NIIN 015541860 · Part number 77421500-019
Lockheed Martin Corporation · FSC 4120 — Air Conditioning Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 04939
Government record, cited
NSN 4120-01-554-1860 — this item is cataloged by the U.S. Government under National Stock Number 4120-01-554-1860. Manufacturer of record part number: 77421500-019.
Also searched as  4120-01-554-1860 · 4120015541860 · NIIN 015541860 · 01-554-1860 · FSC 4120 Air Conditioning Equipment · CAGE 04939 · 77421500-019 · 4120PL1831128
Nearby stock numbers  ·
Features
  • Air Conditioner — FSC 4120
  • 1 manufacturer part number on file
  • Manufacturer of record: Lockheed Martin Corporation
Identification
  • NSN: 4120-01-554-1860
  • NIIN: 015541860
  • FSC: 4120 — Air Conditioning Equipment
  • FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
  • Primary part number: 77421500-019
  • Manufacturer: Lockheed Martin Corporation
General Description

The Air Conditioner, cataloged under National Stock Number 4120-01-554-1860, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Lockheed Martin Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4120-01-554-1860
Primary Part Number77421500-019
Item NameAir Conditioner
FSC / FSG4120 / 41 — Air Conditioning Equipment
ManufacturerLockheed Martin Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL D — Destroy Item
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
77421500-019 PRIMARY Lockheed Martin Corporation (USA)
Reference documents
ReferenceMeaning
4120PL1831128 6/9 Informative reference only
Jednolity Indeks Materialowy - Uniform Material Index
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 4120-01-554-1860?

NSN 4120-01-554-1860 is a Air Conditioner, manufactured by Lockheed Martin Corporation, classified under FSC 4120, Air Conditioning Equipment. Status: active.

What part numbers are listed for NSN 4120-01-554-1860?

NSN 4120-01-554-1860 has 1 manufacturer part number on file: 77421500-019 (Lockheed Martin Corporation).

What are the specifications of 77421500-019?

Key specifications for 77421500-019: Part Name Assigned by Controlling Agency: ENVIRONMENTAL CONTROL UNIT; End Item Identification: SNIPER POD PN 77440100-009. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4120-01-554-1860 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.

What is the DEMIL code for NSN 4120-01-554-1860?

NSN 4120-01-554-1860 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.

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.
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