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NSN 4520-01-184-4646Government record, cited

Register, Air4520-01-184-4646

NSN 4520-01-184-4646 · NIIN 011844646 · Part number 2000-274-04
Coen Company, Inc. · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 71550
Government record, cited
NSN 4520-01-184-4646 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-184-4646. Manufacturer of record part number: 2000-274-04.
Also searched as  4520-01-184-4646 · 4520011844646 · NIIN 011844646 · 01-184-4646 · FSC 4520 Space and Water Heating Equipment · CAGE 71550 · 2000-274-04
Nearby stock numbers  ·
Features
  • Register,air — FSC 4520
  • Grille Wire Mesh Opening Shape: SQUARE
  • Material: STEEL
  • Grille Perforated Shape: SQUARE
  • 1 manufacturer part number on file
  • Manufacturer of record: Coen Company, Inc.
Identification
  • NSN: 4520-01-184-4646
  • NIIN: 011844646
  • FSC: 4520 — Space and Water Heating Equipment
  • FSG: 45 — Plumbing, Heating, and Waste Disposal
  • Primary part number: 2000-274-04
  • Manufacturer: Coen Company, Inc.
General Description

The Register,air, cataloged under National Stock Number 4520-01-184-4646, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Coen Company, Inc.. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 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
NSN4520-01-184-4646
Primary Part Number2000-274-04
Item NameRegister,air
FSC / FSG4520 / 45 — Space and Water Heating Equipment
ManufacturerCoen Company, Inc.
StatusACTIVE
Grille Wire Mesh Opening ShapeSQUARE
MaterialSTEEL
Grille Perforated ShapeSQUARE
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
2000-274-04 PRIMARY Coen Company, Inc. (USA)
No interchangeability data on file.
Other items in FSC 4520 — Space and Water Heating Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4520-00-000-0098
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-000-0099
4520-00-000-0099 · Item name not on file
4520-00-001-1240
4520-00-001-1240 · Item name not on file
4520-00-001-3518
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-3519
HEATING ELEMENT,ELECTRICAL,IMMER
4520-00-001-6052
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-6298
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-7726
HEATER,DUCT TYPE,PORTABLE

Frequently Asked Questions

What is NSN 4520-01-184-4646?

NSN 4520-01-184-4646 is a Register,air, manufactured by Coen Company, Inc., classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-01-184-4646?

NSN 4520-01-184-4646 has 1 manufacturer part number on file: 2000-274-04 (Coen Company, Inc.).

What are the specifications of 2000-274-04?

Key specifications for 2000-274-04: Grille Wire Mesh Opening Shape: SQUARE; End Item Identification: COEN COMPANY OIL BURNER 1MV; Material: STEEL; Grille Perforated Shape: SQUARE. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4520-01-184-4646 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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