PartsTable TECHNICAL DATA SHEET
NSN 4120-01-657-9200Government record, cited

Variable Frequency4120-01-657-9200

NSN 4120-01-657-9200 · NIIN 016579200 · Part number M332509
Mtk Electronics Inc · FSC 4120 — Air Conditioning Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 59901
Government record, cited
NSN 4120-01-657-9200 — this item is cataloged by the U.S. Government under National Stock Number 4120-01-657-9200. Manufacturer of record part number: M332509.
Also searched as  4120-01-657-9200 · 4120016579200 · NIIN 016579200 · 01-657-9200 · FSC 4120 Air Conditioning Equipment · CAGE 59901 · M332509 · ACS550-U1-125A-4
Nearby stock numbers  ·
Features
  • Variable Frequency — FSC 4120
  • 1 manufacturer part number on file
  • Manufacturer of record: Mtk Electronics Inc
Identification
  • NSN: 4120-01-657-9200
  • NIIN: 016579200
  • FSC: 4120 — Air Conditioning Equipment
  • FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
  • Primary part number: M332509
  • Manufacturer: Mtk Electronics Inc
General Description

The Variable Frequency, cataloged under National Stock Number 4120-01-657-9200, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Mtk Electronics Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts
Item NameVariable Frequency
FSC / FSG4120 — Air Conditioning Equipment (FSG 41)
ManufacturersMtk Electronics Inc (CAGE 59901)
Technical Specifications
ParameterValue
NSN4120-01-657-9200
Primary Part NumberM332509
Item NameVariable Frequency
FSC / FSG4120 / 41 — Air Conditioning Equipment
ManufacturerMtk Electronics Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeV
Cross-Reference Index
Part NumberManufacturer
M332509 PRIMARY Mtk Electronics Inc (USA)
Reference documents
ReferenceMeaning
ACS550-U1-125A-4 5/9 Secondary 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 4120-01-657-9200?

NSN 4120-01-657-9200 is a Variable Frequency, manufactured by Mtk Electronics Inc, classified under FSC 4120, Air Conditioning Equipment. Status: active.

What part numbers are listed for NSN 4120-01-657-9200?

NSN 4120-01-657-9200 has 1 manufacturer part number on file: M332509 (Mtk Electronics Inc).

Is NSN 4120-01-657-9200 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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