NSN 4520-01-283-3909 · NIIN 012833909 · Part number DASC08800
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 4520-01-283-3909 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-283-3909. Manufacturer of record part number: DASC08800.
Also searched as4520-01-283-3909 ·
4520012833909 ·
NIIN 012833909 ·
01-283-3909 ·
FSC 4520 Space and Water Heating Equipment · CAGE 0AYP6 · DASC08800 · T-1464-2A · T-1464-1 · T-1464 DASC08800
Manufacturer of record: Specific Systems, Llc Div Specific Systems
Identification
NSN: 4520-01-283-3909
NIIN: 012833909
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: DASC08800
Manufacturer: Specific Systems, Llc Div Specific Systems
General Description
The Damper Unit,fire Control, cataloged under National Stock Number 4520-01-283-3909, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 Name
Damper Unit,fire Control
FSC / FSG
4520 — Space and Water Heating Equipment (FSG 45)
Manufacturers
Specific Systems, Llc Div Specific Systems (CAGE 0AYP6)
Technical Specifications
Parameter
Value
NSN
4520-01-283-3909
Primary Part Number
DASC08800
Item Name
Damper Unit,fire Control
FSC / FSG
4520 / 45 — Space and Water Heating Equipment
Manufacturer
Specific Systems, Llc Div Specific Systems
Status
ACTIVE
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
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4520-01-284-7480DASC01700POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
Possible match (shared part number)Specific Systems, Llc Div Specific Systems
4520-01-289-3642DASC07400POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
Possible match (shared part number)Specific Systems, Llc Div Specific Systems
4520-01-289-3643DASC07600POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
Possible match (shared part number)Specific Systems, Llc Div Specific Systems
4520-01-289-3644DASC11400POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
Possible match (shared part number)Specific Systems, Llc Div Specific Systems
4520-01-289-3645DASC11700POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
Possible match (shared part number)Specific Systems, Llc Div Specific Systems
4520-01-290-7856DASC03900POSSIBLE MATCH
DAMPER UNIT,FIRE CONTROL
Possible match (shared part number)Specific Systems, Llc Div Specific Systems
NSN 4520-01-283-3909 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 4520-01-283-3909?
NSN 4520-01-283-3909 has 2 manufacturer part numbers on file: DASC08800 (Specific Systems, Llc Div Specific Systems), T-1464 DASC08800 (Specific Systems, Llc Div Specific Systems).
What NSN replaces 4520-01-283-3909?
6 possible matches (shared part number, not a government interchangeability claim): 4520-01-284-7480, 4520-01-289-3642, 4520-01-289-3643. Verify interchangeability with system specifications before substitution.
Is NSN 4520-01-283-3909 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.