PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30665-1Fan,circulating

Science Applications International Corporation · NSN 4140-01-654-8054 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-01-654-8054 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-654-8054. Primary manufacturer part number: 30665-1.
Features
  • Fan,circulating — FSC 4140
  • 3 verified cross-references
  • Primary manufacturer: Science Applications International Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Fan,circulating, cataloged under National Stock Number 4140-01-654-8054, is classified within Federal Supply Class 4140 (No Item Name Available) of the Refrigeration, AC, and Air Circulating Equipment group. The primary manufacturer of record is Science Applications International Corporation. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameFan,circulating
FSC / FSG4140 — No Item Name Available (FSG 41)
ManufacturersScience Applications International Corporation Dba Science Applications International Corp (CAGE 4A457); Science Applications International Corporation (CAGE 60595)
Technical Specifications
ParameterValue
NSN4140-01-654-8054
Primary Part Number30665-1
Item NameFan,circulating
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerScience Applications International Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3120-00-677-657530665 INTERCHANGEABLE
Bushing,sleeve
L3harris Technologies, Inc. Div Space and Airborne Systems
4820-01-279-3085N30665 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
5905-01-298-642030665 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
L & R Manufacturing Company
5330-01-316-247330665 INTERCHANGEABLE
Retainer,packing
Hydro-Component Research and Development Corp
5307-01-439-9124 INTERCHANGEABLE
Stud,plain
Cross-Reference Index
Part NumberManufacturer
30665-1 Science Applications International Corporation Dba Science Applications International Corp (USA)
30665 Science Applications International Corporation (USA)
30665-1 PRIMARY Science Applications International Corporation (USA)
Related Parts
3120-00-677-6575INTERCHANGEABLE
BUSHING,SLEEVE
30665
4820-01-279-3085INTERCHANGEABLE
CAP,VALVE
N30665
5905-01-298-6420INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
30665
5330-01-316-2473INTERCHANGEABLE
RETAINER,PACKING
30665
5307-01-439-9124INTERCHANGEABLE
STUD,PLAIN

Frequently Asked Questions

What is NSN 4140-01-654-8054?

NSN 4140-01-654-8054 is a Fan,circulating, manufactured by Science Applications International Corporation, classified under FSC 4140 (No Item Name Available). Status: active.

What are the part numbers for NSN 4140-01-654-8054?

NSN 4140-01-654-8054 has 3 cross-referenced part numbers: 30665-1 (Science Applications International Corporation Dba Science Applications International Corp), 30665 (Science Applications International Corporation), 30665-1 (Science Applications International Corporation).

What NSN replaces 4140-01-654-8054?

There are 5 known substitutes for 4140-01-654-8054: 3120-00-677-6575, 4820-01-279-3085, 5905-01-298-6420 and 2 more. Verify interchangeability with system specifications before substitution.

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