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NSN 4420-01-563-2525Government record, cited

Core Assembly, Fluid Heater, Indus4420-01-563-2525

NSN 4420-01-563-2525 · NIIN 015632525 · Part number STM3890
Vetus, Inc. · FSC 4420 — Heat Exchangers and Steam Condensers · FSG 44 — Furnace, Steam, Drying, Nuclear Reactors · CAGE 48691
Government record, cited
NSN 4420-01-563-2525 — this item is cataloged by the U.S. Government under National Stock Number 4420-01-563-2525. Manufacturer of record part number: STM3890.
Also searched as  4420-01-563-2525 · 4420015632525 · NIIN 015632525 · 01-563-2525 · FSC 4420 Heat Exchangers and Steam Condensers · CAGE 48691 · STM3890 · STM3040
Nearby stock numbers  ·
Features
  • Core Assembly,fluid Heater,indus — FSC 4420
  • 1 manufacturer part number on file
  • Manufacturer of record: Vetus, Inc.
Identification
  • NSN: 4420-01-563-2525
  • NIIN: 015632525
  • FSC: 4420 — Heat Exchangers and Steam Condensers
  • FSG: 44 — Furnace, Steam, Drying, Nuclear Reactors
  • Primary part number: STM3890
  • Manufacturer: Vetus, Inc.
General Description

The Core Assembly,fluid Heater,indus, cataloged under National Stock Number 4420-01-563-2525, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Vetus, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4420-01-563-2525
Primary Part NumberSTM3890
Item NameCore Assembly,fluid Heater,indus
FSC / FSG4420 / 44 — Heat Exchangers and Steam Condensers
ManufacturerVetus, 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
STM3890 PRIMARY Vetus, Inc. (USA)
Reference documents
ReferenceMeaning
STM3040 5/9 Secondary reference
Vetus, Inc.
No interchangeability data on file.
Other items in FSC 4420 — Heat Exchangers and Steam Condensers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4420-00-003-2812
CORE ASSEMBLY,FLUID HEATER,INDUS
4420-00-004-1071
4420-00-004-1071 · Item name not on file
4420-00-004-1072
4420-00-004-1072 · Item name not on file
4420-00-004-1073
4420-00-004-1073 · Item name not on file
4420-00-004-1074
4420-00-004-1074 · Item name not on file
4420-00-004-3860
COOLER,FLUID,INDUSTRIAL
4420-00-004-5260
4420-00-004-5260 · Item name not on file
4420-00-005-2335
PURGE ORIFICE ASSEMBLY

Frequently Asked Questions

What is NSN 4420-01-563-2525?

NSN 4420-01-563-2525 is a Core Assembly,fluid Heater,indus, manufactured by Vetus, Inc., classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.

What part numbers are listed for NSN 4420-01-563-2525?

NSN 4420-01-563-2525 has 1 manufacturer part number on file: STM3890 (Vetus, Inc.).

What are the specifications of STM3890?

Key specifications for STM3890: Part Name Assigned by Controlling Agency: HEAT EXHAUST HOUSING. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4420-01-563-2525 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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