PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R1-9303Fan,vaneaxial

Fm Af, Llc Dba American Fan Company · NSN 4140-01-285-7850 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-01-285-7850 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-285-7850. Primary manufacturer part number: R1-9303.
Features
  • Fan,vaneaxial — FSC 4140
  • Surface Treatment: ZINC HOUSING
  • Material: STEEL HOUSING
  • Rotation Direction for Which Designed: COUNTERCLOCKWISE
  • Style Designator: FIXED
  • Housing Inside Diameter: 21.120 INCHES MINIMUM AND 21.130 INCHES MAXIMUM IN
  • Length: 32.000 INCHES NOMINAL IN
  • 4 verified cross-references
Applications
  • Applications requiring Steel Housing construction
General Description

The Fan,vaneaxial, cataloged under National Stock Number 4140-01-285-7850, 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 Fm Af, Llc Dba American Fan Company. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 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
NSN4140-01-285-7850
Primary Part NumberR1-9303
Item NameFan,vaneaxial
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerFm Af, Llc Dba American Fan Company
StatusACTIVE
Surface TreatmentZINC HOUSING
MaterialSTEEL HOUSING
Rotation Direction for Which DesignedCOUNTERCLOCKWISE
Style DesignatorFIXED
Housing Inside Diameter21.120 INCHES MINIMUM AND 21.130 INCHES MAXIMUM IN
Length32.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6550-01-362-5322R19303 INTERCHANGEABLE
Bacteria Culture Control Discs
Remel Inc.
Cross-Reference Index
Part NumberManufacturer
R1-9303 New Philadelphia Fan Co Buffalo Forge Marine Fans (USA)
R1-9303 CD-3521 Fm Af, Llc Dba American Fan Company (USA)
R1-9303 PRIMARY Fm Af, Llc Dba American Fan Company (USA)
R1-9303 CD-3521 New Philadelphia Fan Co Buffalo Forge Marine Fans (USA)
Related Parts
6550-01-362-5322INTERCHANGEABLE
BACTERIA CULTURE CONTROL DISCS
R19303

Frequently Asked Questions

What is NSN 4140-01-285-7850?

NSN 4140-01-285-7850 is a Fan,vaneaxial, manufactured by Fm Af, Llc Dba American Fan Company, classified under FSC 4140 (No Item Name Available). Status: active.

What are the part numbers for NSN 4140-01-285-7850?

NSN 4140-01-285-7850 has 4 cross-referenced part numbers: R1-9303 (New Philadelphia Fan Co Buffalo Forge Marine Fans), R1-9303 CD-3521 (Fm Af, Llc Dba American Fan Company), R1-9303 (Fm Af, Llc Dba American Fan Company), R1-9303 CD-3521 (New Philadelphia Fan Co Buffalo Forge Marine Fans).

What NSN replaces 4140-01-285-7850?

There is 1 known substitute for 4140-01-285-7850: 6550-01-362-5322. Verify interchangeability with system specifications before substitution.

What are the specifications of R1-9303?

Key specifications for R1-9303: Surface Treatment: ZINC HOUSING; Material: STEEL HOUSING; Rotation Direction for Which Designed: COUNTERCLOCKWISE; Style Designator: FIXED. 6 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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