PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1801463Impeller,pump,centrifugal

Blackmer System One, Inc. Div Blackmer System One, Inc. · NSN 4320-01-491-9237 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-491-9237 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-491-9237. Primary manufacturer part number: 1801463.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Overall Diameter: 9.500 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING
  • Blade Quantity: 4
  • Design Type: SINGLE WIDTH
  • Blade Type: BACKWARD CURVE
  • Rotation Direction for Which Designed: CLOCKWISE
  • 3 verified cross-references
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-491-9237, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Blackmer System One, Inc. Div Blackmer System One, Inc.. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-491-9237
Primary Part Number1801463
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerBlackmer System One, Inc. Div Blackmer System One, Inc.
StatusACTIVE
Overall Diameter9.500 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING
Blade Quantity4
Design TypeSINGLE WIDTH
Blade TypeBACKWARD CURVE
Rotation Direction for Which DesignedCLOCKWISE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5365-01-273-231980146-1 INTERCHANGEABLE
Shim
L3harris Technologies, Inc. Div Space and Airborne Systems
6645-01-315-8634801461 INTERCHANGEABLE
Timer,interval
Alliance Laundry Systems Llc
6750-01-427-6487 INTERCHANGEABLE
Film,photographic
3040-01-465-3862628556 INTERCHANGEABLE
Shaft,shouldered
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
5330-01-491-8395 INTERCHANGEABLE
Gasket
4320-01-491-9888 INTERCHANGEABLE
Housing Section,liquid Pump
3110-01-492-3232 INTERCHANGEABLE
Retainer,ball,bearing
4320-01-515-1314640113 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
Cross-Reference Index
Part NumberManufacturer
1801463 Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
1801463 PT NO.2 Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
801461 Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
Related Parts
5365-01-273-2319INTERCHANGEABLE
SHIM
80146-1
6645-01-315-8634INTERCHANGEABLE
TIMER,INTERVAL
801461
6750-01-427-6487INTERCHANGEABLE
FILM,PHOTOGRAPHIC
3040-01-465-3862INTERCHANGEABLE
SHAFT,SHOULDERED
628556
5330-01-491-8395INTERCHANGEABLE
GASKET
4320-01-491-9888INTERCHANGEABLE
HOUSING SECTION,LIQUID PUMP
3110-01-492-3232INTERCHANGEABLE
RETAINER,BALL,BEARING
4320-01-515-1314INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
640113

Frequently Asked Questions

What is NSN 4320-01-491-9237?

NSN 4320-01-491-9237 is a Impeller,pump,centrifugal, manufactured by Blackmer System One, Inc. Div Blackmer System One, Inc., classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-491-9237?

NSN 4320-01-491-9237 has 3 cross-referenced part numbers: 1801463 (Blackmer System One, Inc. Div Blackmer System One, Inc.), 1801463 PT NO.2 (Blackmer System One, Inc. Div Blackmer System One, Inc.), 801461 (Blackmer System One, Inc. Div Blackmer System One, Inc.).

What NSN replaces 4320-01-491-9237?

There are 8 known substitutes for 4320-01-491-9237: 5365-01-273-2319, 6645-01-315-8634, 6750-01-427-6487 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1801463?

Key specifications for 1801463: End Item Identification: PUMP, CENTRIFUGAL; Overall Diameter: 9.500 INCHES NOMINAL IN; Material: STEEL CORROSION RESISTING; Special Features: ROTATION DIRECTION: CLOCKWISE AS VIEWED FROM MOTOR END, MATERIAL: CD4MCU. 9 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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