PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A0-7756Fan,circulating

Rotron Incorporated · NSN 4140-00-973-8185 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-00-973-8185 — this item is cataloged by the U.S. Government under National Stock Number 4140-00-973-8185. Primary manufacturer part number: A0-7756.
Features
  • Fan,circulating — FSC 4140
  • 8 verified cross-references
  • Primary manufacturer: Rotron Incorporated
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Fan,circulating, cataloged under National Stock Number 4140-00-973-8185, 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 Rotron Incorporated. This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameFan,circulating
FSC / FSG4140 — No Item Name Available (FSG 41)
ManufacturersRotron Incorporated (CAGE 82877); Curtiss-Wright Controls Integrated Sensing, Inc. (CAGE 04320); Joslyn Products (CAGE 23663); Lockheed Martin Corporation Div Rms (CAGE 03538); Ashland Electric Products Inc (CAGE 04810)
Technical Specifications
ParameterValue
NSN4140-00-973-8185
Primary Part NumberA0-7756
Item NameFan,circulating
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerRotron Incorporated
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5340-00-758-043402129-2 INTERCHANGEABLE
Standoff,threaded,spacing
Defense Logistics Agency Dba Defense Supply Center Philadelphia
4140-00-986-3361020401 INTERCHANGEABLE
Fan,circulating
Rotron Incorporated
6515-01-500-1275EF056R INTERCHANGEABLE
Forceps,kidney Stone Removing
Aesculap, Inc
Cross-Reference Index
Part NumberManufacturer
021292000 Rotron Incorporated (USA)
SK1574 Curtiss-Wright Controls Integrated Sensing, Inc. (USA)
A0-7756 PRIMARY Rotron Incorporated (USA)
917200018 Joslyn Products (USA)
HF-AS803-R-123JF Rotron Incorporated (USA)
7708163P2 Lockheed Martin Corporation Div Rms (USA)
021292 Rotron Incorporated (USA)
A7W13Q-21C Ashland Electric Products Inc (USA)
Related Parts
5340-00-758-0434INTERCHANGEABLE
STANDOFF,THREADED,SPACING
02129-2
4140-00-986-3361INTERCHANGEABLE
FAN,CIRCULATING
020401
6515-01-500-1275INTERCHANGEABLE
FORCEPS,KIDNEY STONE REMOVING
EF056R

Frequently Asked Questions

What is NSN 4140-00-973-8185?

NSN 4140-00-973-8185 is a Fan,circulating, manufactured by Rotron Incorporated, classified under FSC 4140 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4140-00-973-8185?

NSN 4140-00-973-8185 has 8 cross-referenced part numbers: 021292000 (Rotron Incorporated), SK1574 (Curtiss-Wright Controls Integrated Sensing, Inc.), A0-7756 (Rotron Incorporated), 917200018 (Joslyn Products), HF-AS803-R-123JF (Rotron Incorporated) and 3 more.

What NSN replaces 4140-00-973-8185?

There are 3 known substitutes for 4140-00-973-8185: 5340-00-758-0434, 4140-00-986-3361, 6515-01-500-1275. Verify interchangeability with system specifications before substitution.

Is NSN 4140-00-973-8185 still in active supply?

NSN 4140-00-973-8185 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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