PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DE33954810-241523Cooler,fluid,industrial

Naval Ship Systems Command · NSN 4420-00-266-9303 · FSC 4420 · No Item Name Available
Verified by PartsTable
NSN 4420-00-266-9303 — this item is cataloged by the U.S. Government under National Stock Number 4420-00-266-9303. Primary manufacturer part number: DE33954810-241523.
Features
  • Cooler,fluid,industrial — FSC 4420
  • Tubing Outside Diameter: 0.625 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
  • Nondefinitive Spec/std Data: A TYPE
  • Material: STEEL SHELL
  • Tube Attachment Method: EXPANDED INLET-PACKED OUTLET
  • Effective Heat Transfer Surface Area: 50.0 SQUARE FEET
  • Heat Transfer Method: INDIRECT
  • Reference Number Differentiating Characteristics: STARBOARD
Applications
  • Applications requiring Steel Shell construction
General Description

The Cooler,fluid,industrial, cataloged under National Stock Number 4420-00-266-9303, 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 Naval Ship Systems Command. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4420-00-266-9303
Primary Part NumberDE33954810-241523
Item NameCooler,fluid,industrial
FSC / FSG4420 / 44 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Tubing Outside Diameter0.625 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Nondefinitive Spec/std DataA TYPE
MaterialSTEEL SHELL
Tube Attachment MethodEXPANDED INLET-PACKED OUTLET
Effective Heat Transfer Surface Area50.0 SQUARE FEET
Heat Transfer MethodINDIRECT
Reference Number Differentiating CharacteristicsSTARBOARD
MaterialCOPPER ALLOY TUBES
Tube Quantity68
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5905-00-116-8555 INTERCHANGEABLE
Resistor,fixed,composition
Cross-Reference Index
Part NumberManufacturer
DE33954810-241523 Naval Ship Systems Command (USA)
DE339S4810-241523 Naval Ship Systems Command (USA)
MILC15730TYPEA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
C50091 Struthers Wells Corp (USA)
Related Parts
5905-00-116-8555INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION

Frequently Asked Questions

What is NSN 4420-00-266-9303?

NSN 4420-00-266-9303 is a Cooler,fluid,industrial, manufactured by Naval Ship Systems Command, classified under FSC 4420 (No Item Name Available). Status: active.

What are the part numbers for NSN 4420-00-266-9303?

NSN 4420-00-266-9303 has 4 cross-referenced part numbers: DE33954810-241523 (Naval Ship Systems Command), DE339S4810-241523 (Naval Ship Systems Command), MILC15730TYPEA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), C50091 (Struthers Wells Corp).

What NSN replaces 4420-00-266-9303?

There is 1 known substitute for 4420-00-266-9303: 5905-00-116-8555. Verify interchangeability with system specifications before substitution.

What are the specifications of DE33954810-241523?

Key specifications for DE33954810-241523: Tubing Outside Diameter: 0.625 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Nondefinitive Spec/std Data: A TYPE; Material: STEEL SHELL; Tube Attachment Method: EXPANDED INLET-PACKED OUTLET. 9 total characteristics are documented in the Federal Logistics Information System.

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