PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

628663Housing Section,liquid Pump

Blackmer System One, Inc. Div Blackmer System One, Inc. · NSN 4320-01-491-9888 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-491-9888 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-491-9888. Primary manufacturer part number: 628663.
Features
  • Housing Section,liquid Pump — 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 Housing Section,liquid Pump, cataloged under National Stock Number 4320-01-491-9888, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameHousing Section,liquid Pump
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersBlackmer System One, Inc. Div Blackmer System One, Inc. (CAGE 1S3F8)
Technical Specifications
ParameterValue
NSN4320-01-491-9888
Primary Part Number628663
Item NameHousing Section,liquid Pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerBlackmer System One, Inc. Div Blackmer System One, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3040-01-465-3862628556 INTERCHANGEABLE
Shaft,shouldered
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
5330-01-491-8395 INTERCHANGEABLE
Gasket
4320-01-491-9237 INTERCHANGEABLE
Impeller,pump,centrifugal
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
628663 Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
1801463 Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
1801463 PT NO.33 Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
Related Parts
3040-01-465-3862INTERCHANGEABLE
SHAFT,SHOULDERED
628556
5330-01-491-8395INTERCHANGEABLE
GASKET
4320-01-491-9237INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
3110-01-492-3232INTERCHANGEABLE
RETAINER,BALL,BEARING
4320-01-515-1314INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
640113

Frequently Asked Questions

What is NSN 4320-01-491-9888?

NSN 4320-01-491-9888 is a Housing Section,liquid Pump, 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 4320-01-491-9888?

NSN 4320-01-491-9888 has 3 cross-referenced part numbers: 628663 (Blackmer System One, Inc. Div Blackmer System One, Inc.), 1801463 (Blackmer System One, Inc. Div Blackmer System One, Inc.), 1801463 PT NO.33 (Blackmer System One, Inc. Div Blackmer System One, Inc.).

What NSN replaces 4320-01-491-9888?

There are 5 known substitutes for 4320-01-491-9888: 3040-01-465-3862, 5330-01-491-8395, 4320-01-491-9237 and 2 more. Verify interchangeability with system specifications before substitution.

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