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STM3890 — CORE ASSEMBLY,FLUID HEATER,INDUS

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

STM3890: CORE ASSEMBLY,FLUID HEATER,INDUS.

CORE ASSEMBLY,FLUID HEATER,INDUS. Key specifications include part_name_assigned_by_controlling_agency: HEAT EXHAUST HOUSING. This part is cataloged in the U.S.

Government catalog under NSN 4420-01-563-2525, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
STM3890
NSN: 4420-01-563-2525
FSC: 4420 — Heat Exchangers and Steam Condensers
CAGE: 48691 — VETUS, INC. (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyHEAT EXHAUST HOUSING
NSN4420-01-563-2525
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CORE ASSEMBLY,FLUID HEATER,INDUS TITLE COMPONENT PN STM3890 MFR CORE ASSEMBLY,FLUID HE
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYHEAT EXHAUST HOUSING
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 4420-00-004-1071 4420-00-004-1072 4420-00-004-1073 4420-00-004-1074 4420-00-004-3860 4420-00-004-5260 4420-00-005-2335
SUBSTITUTES & CROSS-REFERENCES 1
STM3040Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is STM3890?
STM3890 is a CORE ASSEMBLY,FLUID HEATER,INDUS.
What parts can replace STM3890?
There is 1 known substitute for STM3890: STM3040. Substitute compatibility should be verified for your specific system.
What is the NSN for STM3890?
STM3890 is cataloged in the U.S. Government catalog under NSN 4420-01-563-2525. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.