PartsTable TECHNICAL DATA SHEET
NSN 4120-01-663-4688Government record, cited

Environmental Control System4120-01-663-4688

NSN 4120-01-663-4688 · NIIN 016634688 · Part number UHK82094-2
General Atomics Aeronautical Systems, Inc. · FSC 4120 — Air Conditioning Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 0YJB5
Government record, cited
NSN 4120-01-663-4688 — this item is cataloged by the U.S. Government under National Stock Number 4120-01-663-4688. Manufacturer of record part number: UHK82094-2.
Also searched as  4120-01-663-4688 · 4120016634688 · NIIN 016634688 · 01-663-4688 · FSC 4120 Air Conditioning Equipment · CAGE 0YJB5 · UHK82094-2
Nearby stock numbers  ·
Features
  • Environmental Control System — FSC 4120
  • 1 manufacturer part number on file
  • Manufacturer of record: General Atomics Aeronautical Systems, Inc.
Identification
  • NSN: 4120-01-663-4688
  • NIIN: 016634688
  • FSC: 4120 — Air Conditioning Equipment
  • FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
  • Primary part number: UHK82094-2
  • Manufacturer: General Atomics Aeronautical Systems, Inc.
General Description

The Environmental Control System, cataloged under National Stock Number 4120-01-663-4688, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is General Atomics Aeronautical Systems, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4120-01-663-4688
Primary Part NumberUHK82094-2
Item NameEnvironmental Control System
FSC / FSG4120 / 41 — Air Conditioning Equipment
ManufacturerGeneral Atomics Aeronautical Systems, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL Q — CCL Item — Commerce Control List
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
UHK82094-2 PRIMARY General Atomics Aeronautical Systems, Inc. (USA)
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 4120-01-663-4688?

NSN 4120-01-663-4688 is a Environmental Control System, manufactured by General Atomics Aeronautical Systems, Inc., classified under FSC 4120, Air Conditioning Equipment. Status: active.

What part numbers are listed for NSN 4120-01-663-4688?

NSN 4120-01-663-4688 has 1 manufacturer part number on file: UHK82094-2 (General Atomics Aeronautical Systems, Inc.).

What are the specifications of UHK82094-2?

Key specifications for UHK82094-2: Part Name Assigned by Controlling Agency: GROUND COOLING KIT; End Item Identification: REAPER/MQ9. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4120-01-663-4688 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 4120-01-663-4688?

NSN 4120-01-663-4688 has DEMIL Code Q. 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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