PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1801169Impeller,pump,centrifugal

Blackmer System One, Inc. Div Blackmer System One, Inc. · NSN 4320-01-497-0025 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-497-0025 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-497-0025. Primary manufacturer part number: 1801169.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • 3 verified cross-references
  • Primary manufacturer: Blackmer System One, Inc. Div Blackmer System One, Inc.
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-497-0025, 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.. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameImpeller,pump,centrifugal
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersBlackmer System One, Inc. Div Blackmer System One, Inc. (CAGE 1S3F8)
Technical Specifications
ParameterValue
NSN4320-01-497-0025
Primary Part Number1801169
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerBlackmer System One, Inc. Div Blackmer System One, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5950-00-949-48831801169 INTERCHANGEABLE
Reactor
Northrop Grumman Systems Corporation
4320-01-495-6097 INTERCHANGEABLE
Pump,centrifugal
Cross-Reference Index
Part NumberManufacturer
1801169 Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
1801169 ITEM NO 2 11.00 IN. Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
801177 11.00 IN. Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
Related Parts
5950-00-949-4883INTERCHANGEABLE
REACTOR
1801169
4320-01-495-6097INTERCHANGEABLE
PUMP,CENTRIFUGAL

Frequently Asked Questions

What is NSN 4320-01-497-0025?

NSN 4320-01-497-0025 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 4320-01-497-0025?

NSN 4320-01-497-0025 has 3 cross-referenced part numbers: 1801169 (Blackmer System One, Inc. Div Blackmer System One, Inc.), 1801169 ITEM NO 2 11.00 IN. (Blackmer System One, Inc. Div Blackmer System One, Inc.), 801177 11.00 IN. (Blackmer System One, Inc. Div Blackmer System One, Inc.).

What NSN replaces 4320-01-497-0025?

There are 2 known substitutes for 4320-01-497-0025: 5950-00-949-4883, 4320-01-495-6097. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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