Core Assembly, Fluid Cooler4420-01-431-1243

NSN 4420-01-431-1243 · NIIN 014311243

FSC 4420 — Heat Exchangers and Steam Condensers · FSG 44 — Furnace, Steam, Drying, Nuclear Reactors

Government record, cited

Also searched as 4420-01-431-1243 · 4420014311243 · NIIN 014311243 · 01-431-1243 · FSC 4420 Heat Exchangers and Steam Condensers · 66302C · 66298C THRU 66302C

Nearby stock numbers ← 4420-01-430-7311 Cooler, Fluid, Industrial · 4420-01-431-7509 Cooler, Fluid, Industrial →

Features

Core Assembly,fluid Cooler — FSC 4420
Heat Transfer Method: INDIRECT
Tube Quantity: 2
Core Length: 42.000 INCHES NOMINAL IN
Material: COPPER TUBES

Identification

NSN: 4420-01-431-1243
NIIN: 014311243
FSC: 4420 — Heat Exchangers and Steam Condensers
FSG: 44 — Furnace, Steam, Drying, Nuclear Reactors

General Description

The Core Assembly,fluid Cooler, cataloged under National Stock Number 4420-01-431-1243, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4420-01-431-1243
Item Name	Core Assembly,fluid Cooler
FSC / FSG	4420 / 44 — Heat Exchangers and Steam Condensers
Status	ACTIVE
Heat Transfer Method	INDIRECT
Tube Quantity	2
Core Length	42.000 INCHES NOMINAL IN
Material	COPPER TUBES

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

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
66302C	3/9 Design control — primary reference Elkay Manufacturing Company Dba Elkay Sales Inc
66298C THRU 66302C	D/9 Drawing number reference only Elkay Manufacturing Company Dba Elkay Sales 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 4420-01-431-1243?

NSN 4420-01-431-1243 is a Core Assembly,fluid Cooler, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.

What are the specifications of 4420-01-431-1243?

Key specifications for 4420-01-431-1243: Heat Transfer Method: INDIRECT; Tube Quantity: 2; Core Length: 42.000 INCHES NOMINAL IN; Special Features: CAPILLARY TUPE 0.040 O/D, SUCTION TUBE 0.250 O/D. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4420-01-431-1243 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.

PartsTable Design LLC · partstable.com