The Dehydrator Assy,air, cataloged under National Stock Number 4440-00-329-7547, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
Dehydrator Assy,air
FSC / FSG
4440 — Driers, Dehydrators, and Anhydrators (FSG 44)
Technical Specifications
Parameter
Value
NSN
4440-00-329-7547
Item Name
Dehydrator Assy,air
FSC / FSG
4440 / 44 — Driers, Dehydrators, and Anhydrators
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4310-00-494-44313W11655TPOSSIBLE MATCH
VALVE ASSEMBLY,INTAKE
Possible match (shared part number)Clark Equipment Co Div Doosan Infracore Portable Power
1650-00-928-3888100345POSSIBLE MATCH
FILTER,FLUID
Possible match (shared part number)Woodward Hrt Inc
2910-01-221-2170POSSIBLE MATCH
PUMP,FUEL,ELECTRICAL
Possible match (shared part number)
5330-01-439-4266100345POSSIBLE MATCH
GASKET
Possible match (shared part number)Neptune Chemical Pump Co Div of R a Industries Inc
5355-01-615-9254100345POSSIBLE MATCH
KNOB
Possible match (shared part number)Tim Price Inc. Dba Tim Price Inc
5995-01-660-9118100345POSSIBLE MATCH
CABLE ASSEMBLY,SPECIAL PURPOSE,E
Possible match (shared part number)L3 Technologies, Inc. Div L3 Keo
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
100-345
3/2Design control — primary reference
U.S. Government activity
Related Parts
4310-00-494-4431POSSIBLE MATCH
VALVE ASSEMBLY,INTAKE
3W11655T
1650-00-928-3888POSSIBLE MATCH
FILTER,FLUID
100345
2910-01-221-2170POSSIBLE MATCH
PUMP,FUEL,ELECTRICAL
5330-01-439-4266POSSIBLE MATCH
GASKET
100345
5355-01-615-9254POSSIBLE MATCH
KNOB
100345
5995-01-660-9118POSSIBLE MATCH
CABLE ASSEMBLY,SPECIAL PURPOSE,E
100345
Frequently Asked Questions
What is NSN 4440-00-329-7547?
NSN 4440-00-329-7547 is a Dehydrator Assy,air, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
What NSN replaces 4440-00-329-7547?
6 possible matches (shared part number, not a government interchangeability claim): 4310-00-494-4431, 1650-00-928-3888, 2910-01-221-2170. Verify interchangeability with system specifications before substitution.
Is NSN 4440-00-329-7547 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.