PartsTable TECHNICAL DATA SHEET
NSN 4120-01-254-7777Government record, cited

Heater4120-01-254-7777

NSN 4120-01-254-7777 · NIIN 012547777 · Part number 24-CH-100
Adams Industries Inc Tutco Inc · FSC 4120 — Air Conditioning Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 59545
Government record, cited
NSN 4120-01-254-7777 — this item is cataloged by the U.S. Government under National Stock Number 4120-01-254-7777. Manufacturer of record part number: 24-CH-100.
Also searched as  4120-01-254-7777 · 4120012547777 · NIIN 012547777 · 01-254-7777 · FSC 4120 Air Conditioning Equipment · CAGE 59545 · 24-CH-100 · 500K0590-1 · 500K0590-1 · 500K0590-1
Nearby stock numbers  ·
Features
  • Heater — FSC 4120
  • 1 manufacturer part number on file
  • Manufacturer of record: Adams Industries Inc Tutco Inc
Identification
  • NSN: 4120-01-254-7777
  • NIIN: 012547777
  • FSC: 4120 — Air Conditioning Equipment
  • FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
  • Primary part number: 24-CH-100
  • Manufacturer: Adams Industries Inc Tutco Inc
General Description

The Heater, cataloged under National Stock Number 4120-01-254-7777, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Adams Industries Inc Tutco Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4120-01-254-7777
Primary Part Number24-CH-100
Item NameHeater
FSC / FSG4120 / 41 — Air Conditioning Equipment
ManufacturerAdams Industries Inc Tutco Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
24-CH-100 PRIMARY Adams Industries Inc Tutco Inc (USA)
Reference documents
ReferenceMeaning
500K0590-1 5/9 Secondary reference
U.S. Government activity
500K0590-1 5/9 Secondary reference
Drs Environmental Systems Inc
500K0590-1 5/2 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 4120-01-254-7777?

NSN 4120-01-254-7777 is a Heater, manufactured by Adams Industries Inc Tutco Inc, classified under FSC 4120, Air Conditioning Equipment. Status: active.

What part numbers are listed for NSN 4120-01-254-7777?

NSN 4120-01-254-7777 has 1 manufacturer part number on file: 24-CH-100 (Adams Industries Inc Tutco Inc).

What are the specifications of 24-CH-100?

Key specifications for 24-CH-100: End Item Identification: 4120-01-165-1125. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4120-01-254-7777 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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