PartsTable TECHNICAL DATA SHEET
NSN 4420-01-593-8864Government record, cited

Core Assembly, Fluid Heater, Indus4420-01-593-8864

NSN 4420-01-593-8864 · NIIN 015938864 · Part number M3421
Parker Hannifin Corporation Div Village Marine Tech · FSC 4420 — Heat Exchangers and Steam Condensers · FSG 44 — Furnace, Steam, Drying, Nuclear Reactors · CAGE 62144
Government record, cited
NSN 4420-01-593-8864 — this item is cataloged by the U.S. Government under National Stock Number 4420-01-593-8864. Manufacturer of record part number: M3421.
Also searched as  4420-01-593-8864 · 4420015938864 · NIIN 015938864 · 01-593-8864 · FSC 4420 Heat Exchangers and Steam Condensers · CAGE 62144 · M3421 · 17501PC3
Nearby stock numbers  ·
Features
  • Core Assembly,fluid Heater,indus — FSC 4420
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Parker Hannifin Corporation Div Village Marine Tech
Identification
  • NSN: 4420-01-593-8864
  • NIIN: 015938864
  • FSC: 4420 — Heat Exchangers and Steam Condensers
  • FSG: 44 — Furnace, Steam, Drying, Nuclear Reactors
  • Primary part number: M3421
  • Manufacturer: Parker Hannifin Corporation Div Village Marine Tech
General Description

The Core Assembly,fluid Heater,indus, cataloged under National Stock Number 4420-01-593-8864, 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 Parker Hannifin Corporation Div Village Marine Tech. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4420-01-593-8864
Primary Part NumberM3421
Item NameCore Assembly,fluid Heater,indus
FSC / FSG4420 / 44 — Heat Exchangers and Steam Condensers
ManufacturerParker Hannifin Corporation Div Village Marine Tech
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
M3421 PRIMARY Parker Hannifin Corporation Div Village Marine Tech (USA)
17501PC3 Parker Hannifin Corporation Div Village Marine Tech (USA)
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 4420-01-593-8864?

NSN 4420-01-593-8864 is a Core Assembly,fluid Heater,indus, manufactured by Parker Hannifin Corporation Div Village Marine Tech, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.

What part numbers are listed for NSN 4420-01-593-8864?

NSN 4420-01-593-8864 has 2 manufacturer part numbers on file: M3421 (Parker Hannifin Corporation Div Village Marine Tech), 17501PC3 (Parker Hannifin Corporation Div Village Marine Tech).

What are the specifications of M3421?

Key specifications for M3421: Part Name Assigned by Controlling Agency: HEATER ASSEMBLY; End Item Identification: CVN NUCLEAR REACTOR BOUNDARY AREA. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4420-01-593-8864 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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