PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

188Impeller,pump,centrifugal

Aurora Pump a Unit of General Signal Corp · NSN 4320-00-216-7494 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-216-7494 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-216-7494. Primary manufacturer part number: 188.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Keyway Quantity: 1
  • Hub Length: 0.677 INCHES NOMINAL IN
  • Overall Diameter: 4.000 INCHES NOMINAL IN
  • Keyway Width: 0.125 INCHES NOMINAL IN
  • Hub Location: BACK SIDE
  • Hub Bore Diameter: 1.125 INCHES NOMINAL IN
  • Rotation Direction for Which Designed: CLOCKWISE
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Copper Alloy construction
General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-216-7494, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Aurora Pump a Unit of General Signal Corp. Government technical data includes 14 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-216-7494
Primary Part Number188
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerAurora Pump a Unit of General Signal Corp
StatusACTIVE
Keyway Quantity1
Hub Length0.677 INCHES NOMINAL IN
Overall Diameter4.000 INCHES NOMINAL IN
Keyway Width0.125 INCHES NOMINAL IN
Hub LocationBACK SIDE
Hub Bore Diameter1.125 INCHES NOMINAL IN
Rotation Direction for Which DesignedCLOCKWISE
Mounting MethodKEY
Keyway TypePLAIN
Hub Quantity1
MaterialCOPPER ALLOY
Blade Quantity120
Keyway Depth0.072 INCHES NOMINAL IN
Design TypeDOUBLE WIDTH
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
7920-00-057-320054016 INTERCHANGEABLE
Brush,wire,scratch
Jason Incorporated Dba Osborn International a Unit of Jason
5996-00-115-1188C500000035 INTERCHANGEABLE
Amplifier,electronic Control
Kearfott Corporation Div Guidance and Navigation Division
3030-00-232-2496118TG INTERCHANGEABLE
Belt,v
Gates Corporation
3441-00-239-8666 INTERCHANGEABLE
Forming Machine,sheet Metal,rota
2010-00-278-0794 INTERCHANGEABLE
Cap,fairwater
5120-00-293-0337 INTERCHANGEABLE
Wrench,box
5330-00-737-25167372516 INTERCHANGEABLE
Gasket Set
U S Army Tank Automotive Command Amsta-Im-Mm
2910-00-759-5345 INTERCHANGEABLE
Carburetor,float
2530-00-770-2111F13701 INTERCHANGEABLE
Parts Kit,hydraulic Brake Wheel
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5310-00-829-9985453053-3 INTERCHANGEABLE
Washer,flat
Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis
Cross-Reference Index
Part NumberManufacturer
188 Aurora Pump a Unit of General Signal Corp (USA)
D4-4B Aurora Pump a Unit of General Signal Corp (USA)
D4-4B General Signal Corp (USA)
188 General Signal Corp (USA)
Related Parts
7920-00-057-3200INTERCHANGEABLE
BRUSH,WIRE,SCRATCH
54016
5996-00-115-1188INTERCHANGEABLE
AMPLIFIER,ELECTRONIC CONTROL
C500000035
3030-00-232-2496INTERCHANGEABLE
BELT,V
118TG
3441-00-239-8666INTERCHANGEABLE
FORMING MACHINE,SHEET METAL,ROTA
2010-00-278-0794INTERCHANGEABLE
CAP,FAIRWATER
5120-00-293-0337INTERCHANGEABLE
WRENCH,BOX
5330-00-737-2516INTERCHANGEABLE
GASKET SET
7372516
2910-00-759-5345INTERCHANGEABLE
CARBURETOR,FLOAT
2530-00-770-2111INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE WHEEL
F13701
5310-00-829-9985INTERCHANGEABLE
WASHER,FLAT
453053-3
6625-00-930-9205INTERCHANGEABLE
AMMETER
6150-01-008-2513INTERCHANGEABLE
LEAD,ELECTRICAL
247

Frequently Asked Questions

What is NSN 4320-00-216-7494?

NSN 4320-00-216-7494 is a Impeller,pump,centrifugal, manufactured by Aurora Pump a Unit of General Signal Corp, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-216-7494?

NSN 4320-00-216-7494 has 4 cross-referenced part numbers: 188 (Aurora Pump a Unit of General Signal Corp), D4-4B (Aurora Pump a Unit of General Signal Corp), D4-4B (General Signal Corp), 188 (General Signal Corp).

What NSN replaces 4320-00-216-7494?

There are 12 known substitutes for 4320-00-216-7494: 7920-00-057-3200, 5996-00-115-1188, 3030-00-232-2496 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 188?

Key specifications for 188: Keyway Quantity: 1; Hub Length: 0.677 INCHES NOMINAL IN; Overall Diameter: 4.000 INCHES NOMINAL IN; Keyway Width: 0.125 INCHES NOMINAL IN. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com