PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

323-5-020Core Assembly,fluid Cooler

Ametek Inc Heat Transfer Div · NSN 4420-01-279-4533 · FSC 4420 · No Item Name Available
Verified by PartsTable
NSN 4420-01-279-4533 — this item is cataloged by the U.S. Government under National Stock Number 4420-01-279-4533. Primary manufacturer part number: 323-5-020.
Features
  • Core Assembly,fluid Cooler — FSC 4420
  • 1 verified cross-reference
  • Primary manufacturer: Ametek Inc Heat Transfer Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Core Assembly,fluid Cooler, cataloged under National Stock Number 4420-01-279-4533, is classified within Federal Supply Class 4420 (No Item Name Available) of the Furnace, Steam, Drying, Nuclear Reactors group. The primary manufacturer of record is Ametek Inc Heat Transfer Div. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCore Assembly,fluid Cooler
FSC / FSG4420 — No Item Name Available (FSG 44)
ManufacturersAmetek Inc Heat Transfer Div (CAGE 60883)
Technical Specifications
ParameterValue
NSN4420-01-279-4533
Primary Part Number323-5-020
Item NameCore Assembly,fluid Cooler
FSC / FSG4420 / 44 — No Item Name Available
ManufacturerAmetek Inc Heat Transfer Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5315-00-281-72483202208 INTERCHANGEABLE
Pin,straight,headed
Hatch & Kirk, Inc.
5342-01-271-52323235020 INTERCHANGEABLE
Guard,bracket
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
323-5-020 PRIMARY Ametek Inc Heat Transfer Div (USA)
Related Parts
5315-00-281-7248INTERCHANGEABLE
PIN,STRAIGHT,HEADED
3202208
5342-01-271-5232INTERCHANGEABLE
GUARD,BRACKET
3235020

Frequently Asked Questions

What is NSN 4420-01-279-4533?

NSN 4420-01-279-4533 is a Core Assembly,fluid Cooler, manufactured by Ametek Inc Heat Transfer Div, classified under FSC 4420 (No Item Name Available). Status: active.

What are the part numbers for NSN 4420-01-279-4533?

NSN 4420-01-279-4533 has 1 cross-referenced part number: 323-5-020 (Ametek Inc Heat Transfer Div).

What NSN replaces 4420-01-279-4533?

There are 2 known substitutes for 4420-01-279-4533: 5315-00-281-7248, 5342-01-271-5232. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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