Fan Coil Unit, Air Conditioning4120-01-177-9403

NSN 4120-01-177-9403 · NIIN 011779403

FSC 4120 — Air Conditioning Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment

Government record, cited

Also searched as 4120-01-177-9403 · 4120011779403 · NIIN 011779403 · 01-177-9403 · FSC 4120 Air Conditioning Equipment · 79D7 SIZE 23 · 83D0230 SZ 23 · MIL-A-23798

Nearby stock numbers ← 4120-01-177-8665 · 4120-01-178-4774 Air Conditioner →

Features

Fan Coil Unit,air Conditioning — FSC 4120
Nondefinitive Spec/std Data: III TYPE AND 23 SIZE

Identification

NSN: 4120-01-177-9403
NIIN: 011779403
FSC: 4120 — Air Conditioning Equipment
FSG: 41 — Refrigeration, AC, and Air Circulating Equipment

General Description

The Fan Coil Unit,air Conditioning, cataloged under National Stock Number 4120-01-177-9403, 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1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4120-01-177-9403
Item Name	Fan Coil Unit,air Conditioning
FSC / FSG	4120 / 41 — Air Conditioning Equipment
Status	ACTIVE
Nondefinitive Spec/std Data	III TYPE AND 23 SIZE

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
79D7 SIZE 23	5/9 Secondary reference U.S. Government activity
83D0230 SZ 23	3/2 Design control — primary reference U.S. Government activity
MIL-A-23798	4/1 Identification reference U.S. Government activity

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 4120-01-177-9403?

NSN 4120-01-177-9403 is a Fan Coil Unit,air Conditioning, classified under FSC 4120, Air Conditioning Equipment. Status: active.

What are the specifications of 4120-01-177-9403?

Key specifications for 4120-01-177-9403: Nondefinitive Spec/std Data: III TYPE AND 23 SIZE. 1 specification is documented in the U.S. Government catalog.

Is NSN 4120-01-177-9403 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.

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