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NSN 4520-01-284-7480Government record, cited
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Damper Unit, Fire Control4520-01-284-7480

NSN 4520-01-284-7480 · NIIN 012847480 · Part number DASC01700
Specific Systems, Llc Div Specific Systems · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 0AYP6
Government record, cited
NSN 4520-01-284-7480 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-284-7480. Manufacturer of record part number: DASC01700.
Also searched as  4520-01-284-7480 · 4520012847480 · NIIN 012847480 · 01-284-7480 · FSC 4520 Space and Water Heating Equipment · CAGE 0AYP6 · DASC01700 · T-1464-2B · T-1464 DASC01700 · T-1464-1 · T-1464-2A
Nearby stock numbers  ·
Features
  • Damper Unit,fire Control — FSC 4520
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Specific Systems, Llc Div Specific Systems
Identification
  • NSN: 4520-01-284-7480
  • NIIN: 012847480
  • FSC: 4520 — Space and Water Heating Equipment
  • FSG: 45 — Plumbing, Heating, and Waste Disposal
  • Primary part number: DASC01700
  • Manufacturer: Specific Systems, Llc Div Specific Systems
General Description

The Damper Unit,fire Control, cataloged under National Stock Number 4520-01-284-7480, 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 Specific Systems, Llc Div Specific Systems. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts
Item NameDamper Unit,fire Control
FSC / FSG4520 — Space and Water Heating Equipment (FSG 45)
ManufacturersSpecific Systems, Llc Div Specific Systems (CAGE 0AYP6)
Technical Specifications
ParameterValue
NSN4520-01-284-7480
Primary Part NumberDASC01700
Item NameDamper Unit,fire Control
FSC / FSG4520 / 45 — Space and Water Heating Equipment
ManufacturerSpecific Systems, Llc Div Specific Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4520-01-289-3642DASC07400 POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
Possible match (shared part number)Specific Systems, Llc Div Specific Systems
4520-01-289-3643DASC07600 POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
Possible match (shared part number)Specific Systems, Llc Div Specific Systems
4520-01-289-3644DASC11400 POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
Possible match (shared part number)Specific Systems, Llc Div Specific Systems
4520-01-289-3645DASC11700 POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
Possible match (shared part number)Specific Systems, Llc Div Specific Systems
4520-01-290-7856DASC03900 POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
Possible match (shared part number)Specific Systems, Llc Div Specific Systems
Cross-Reference Index
Part NumberManufacturer
T-1464 DASC01700 Specific Systems, Llc Div Specific Systems (USA)
DASC01700 PRIMARY Specific Systems, Llc Div Specific Systems (USA)
Reference documents
ReferenceMeaning
T-1464-2B D/9 Drawing number reference only
Specific Systems, Llc Div Specific Systems
T-1464-1 D/9 Drawing number reference only
Specific Systems, Llc Div Specific Systems
T-1464-2A D/9 Drawing number reference only
Specific Systems, Llc Div Specific Systems
Related Parts
4520-01-289-3642POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
DASC07400
4520-01-289-3643POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
DASC07600
4520-01-289-3644POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
DASC11400
4520-01-289-3645POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
DASC11700
4520-01-290-7856POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
DASC03900

Frequently Asked Questions

What is NSN 4520-01-284-7480?

NSN 4520-01-284-7480 is a Damper Unit,fire Control, manufactured by Specific Systems, Llc Div Specific Systems, classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-01-284-7480?

NSN 4520-01-284-7480 has 2 manufacturer part numbers on file: T-1464 DASC01700 (Specific Systems, Llc Div Specific Systems), DASC01700 (Specific Systems, Llc Div Specific Systems).

What NSN replaces 4520-01-284-7480?

5 possible matches (shared part number, not a government interchangeability claim): 4520-01-289-3642, 4520-01-289-3643, 4520-01-289-3644. Verify interchangeability with system specifications before substitution.

Is NSN 4520-01-284-7480 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.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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