PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B500Fan,circulating

Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan · NSN 4140-01-473-0886 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-01-473-0886 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-473-0886. Primary manufacturer part number: B500.
Features
  • Fan,circulating — FSC 4140
  • Criticality Code Justification: FEAT
  • 5 verified cross-references
  • Primary manufacturer: Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Fan,circulating, cataloged under National Stock Number 4140-01-473-0886, 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 Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4140-01-473-0886
Primary Part NumberB500
Item NameFan,circulating
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerLockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
StatusACTIVE
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
9905-00-388-8817 INTERCHANGEABLE
Band,marker
4940-00-473-6218B500 INTERCHANGEABLE
Cleaner,steam,pressure Jet
Clayton Manufacturing Company
5925-00-500-9354B50.0 INTERCHANGEABLE
Thermal Release,circuit Breaker
Schneider Electric Usa, Inc.
6140-01-332-6019B500 INTERCHANGEABLE
Battery,storage
Tel-Instrument Electronics Corp Div Tel-Instrument Electronics Corporation
4520-01-473-8712 INTERCHANGEABLE
Heating Element,electrical,nonim
4210-01-493-8159B500 INTERCHANGEABLE
Extinguisher,fire
Amerex Corporation Dba Amerex Corp
6610-01-524-9315B500 INTERCHANGEABLE
Indicator,angle
North Atlantic Industries, Inc. Dba North Atlantic Industries
Cross-Reference Index
Part NumberManufacturer
7383980-00 Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
N103343 Lockheed Martin Corporation Div Rms - Manassas (USA)
B500 PRIMARY Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
B500 PRIMARY Lockheed Martin Corporation Div Rms - Manassas (USA)
79C0301-00 Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
Related Parts
9905-00-388-8817INTERCHANGEABLE
BAND,MARKER
4940-00-473-6218INTERCHANGEABLE
CLEANER,STEAM,PRESSURE JET
B500
5925-00-500-9354INTERCHANGEABLE
THERMAL RELEASE,CIRCUIT BREAKER
B50.0
6140-01-332-6019INTERCHANGEABLE
BATTERY,STORAGE
B500
4520-01-473-8712INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
4210-01-493-8159INTERCHANGEABLE
EXTINGUISHER,FIRE
B500
6610-01-524-9315INTERCHANGEABLE
INDICATOR,ANGLE
B500

Frequently Asked Questions

What is NSN 4140-01-473-0886?

NSN 4140-01-473-0886 is a Fan,circulating, manufactured by Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan, classified under FSC 4140 (No Item Name Available). Status: active.

What are the part numbers for NSN 4140-01-473-0886?

NSN 4140-01-473-0886 has 5 cross-referenced part numbers: 7383980-00 (Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan), N103343 (Lockheed Martin Corporation Div Rms - Manassas), B500 (Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan), B500 (Lockheed Martin Corporation Div Rms - Manassas), 79C0301-00 (Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan).

What NSN replaces 4140-01-473-0886?

There are 7 known substitutes for 4140-01-473-0886: 9905-00-388-8817, 4940-00-473-6218, 5925-00-500-9354 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B500?

Key specifications for B500: Criticality Code Justification: FEAT; Special Features: ITEMS ARE BEING CODED AS CRITICAL TO INSURE SOURCE INSPECTION WILL BE PERFORMED AT THE POINT OF MANUFACTURE, PRIOR TO MATERIAL RECEIPT BY THE US NAVY OR OTHER DOD COMPONENTS. THESE ITEMS ARE PIECE PARTS OR END ITEMS IN SUPPORT OF VITAL MILITARY HARDWARE NECESSARY TO SUSTAIN THE SUCCESSFUL MISSION OF THE SHIPS, SUBMARINES, AND SHORE STATIONS OF THE US NAVY. CRITICAL FEATURES INCLUDING, BUT NOT LIMITED TO, DIMENSIONS, TOLERANCES/CLEARANCES, ELECTRONIC CHARACTERISTICS, AND METALLURGICAL PROPERTIES WILL BESPECIFIED FOR GOVERNMENT Q AR (QUALITY ASSURANCE REPRESENTATIVES) TO INSURE THE HIGHEST POSSIBLE DEGREE OF QUALITY AND RELIABILITY OF THESE PARTS BEING DELIVERED UNDER NAVICP CONTRACTS. 2 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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