PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B2054Impeller,fan,centrifugal

Dcm Manufacturing, Inc. · NSN 4140-00-891-2090 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-00-891-2090 — this item is cataloged by the U.S. Government under National Stock Number 4140-00-891-2090. Primary manufacturer part number: B2054.
Features
  • Impeller,fan,centrifugal — FSC 4140
  • Width: 0.654 INCHES NOMINAL IN
  • Attachment Method: SETSCREW
  • Style Designator: CURVED BLADES SINGLE WIDTH
  • Blade Quantity: 6
  • Diameter: 4.375 INCHES NOMINAL IN
  • Material: ALUMINUM OVERALL
  • 3 verified cross-references
Applications
  • Applications requiring Aluminum Overall construction
General Description

The Impeller,fan,centrifugal, cataloged under National Stock Number 4140-00-891-2090, 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 Dcm Manufacturing, Inc.. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4140-00-891-2090
Primary Part NumberB2054
Item NameImpeller,fan,centrifugal
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerDcm Manufacturing, Inc.
StatusACTIVE
Width0.654 INCHES NOMINAL IN
Attachment MethodSETSCREW
Style DesignatorCURVED BLADES SINGLE WIDTH
Blade Quantity6
Diameter4.375 INCHES NOMINAL IN
MaterialALUMINUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2825-00-056-2412 INTERCHANGEABLE
Deflector,dirt and Liquid
3110-00-144-8869R-200ZZSD502RDA1P15LY48U INTERCHANGEABLE
Bearing,ball,annular
New Hampshire Ball Bearings Inc Div Precision Division
5342-00-147-639920081 INTERCHANGEABLE
Cap,shipping
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
3455-00-236-3637 INTERCHANGEABLE
Reamer,machine
5330-00-251-405724609 INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
4130-00-400-2418ERP12 7-8IN0DF INTERCHANGEABLE
Regulator,pressure
Emerson Electric Co Alco Controls Div
6350-00-410-854020081 INTERCHANGEABLE
Knob Assembly,panel
M/a-Com Government Products Inc
5315-00-786-399813554 INTERCHANGEABLE
Pin,lock
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
4520-01-088-762720081 INTERCHANGEABLE
Hub,fan,heater
C-Way Industries Inc
3040-01-091-38392008-1 INTERCHANGEABLE
Connecting Link,rigid
Tyee Aircraft Inc Div Tyee Aircraft
Cross-Reference Index
Part NumberManufacturer
B2054 PRIMARY Dcm Manufacturing, Inc. (USA)
B2054 Benmar Heater Div Stacee Mfg Inc (USA)
20081 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
Related Parts
2825-00-056-2412INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
3110-00-144-8869INTERCHANGEABLE
BEARING,BALL,ANNULAR
R-200ZZSD502RDA1P15LY48U
5342-00-147-6399INTERCHANGEABLE
CAP,SHIPPING
20081
3455-00-236-3637INTERCHANGEABLE
REAMER,MACHINE
5330-00-251-4057INTERCHANGEABLE
GASKET
24609
4130-00-400-2418INTERCHANGEABLE
REGULATOR,PRESSURE
ERP12 7-8IN0DF
6350-00-410-8540INTERCHANGEABLE
KNOB ASSEMBLY,PANEL
20081
5315-00-786-3998INTERCHANGEABLE
PIN,LOCK
13554
4520-01-088-7627INTERCHANGEABLE
HUB,FAN,HEATER
20081
3040-01-091-3839INTERCHANGEABLE
CONNECTING LINK,RIGID
2008-1
1680-01-121-3177INTERCHANGEABLE
PANEL,WEAPON CONTRO
20081
4820-01-285-0689INTERCHANGEABLE
VALVE,SAFETY RELIEF
20081C51M

Frequently Asked Questions

What is NSN 4140-00-891-2090?

NSN 4140-00-891-2090 is a Impeller,fan,centrifugal, manufactured by Dcm Manufacturing, Inc., classified under FSC 4140 (No Item Name Available). Status: active.

What are the part numbers for NSN 4140-00-891-2090?

NSN 4140-00-891-2090 has 3 cross-referenced part numbers: B2054 (Dcm Manufacturing, Inc.), B2054 (Benmar Heater Div Stacee Mfg Inc), 20081 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.).

What NSN replaces 4140-00-891-2090?

There are 12 known substitutes for 4140-00-891-2090: 2825-00-056-2412, 3110-00-144-8869, 5342-00-147-6399 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B2054?

Key specifications for B2054: Width: 0.654 INCHES NOMINAL IN; Attachment Method: SETSCREW; Style Designator: CURVED BLADES SINGLE WIDTH; Blade Quantity: 6. 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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