PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

628551Pump,centrifugal

Blackmer System One, Inc. Div Blackmer System One, Inc. · NSN 4320-01-480-3128 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-480-3128 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-480-3128. Primary manufacturer part number: 628551.
Features
  • 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 Pump,centrifugal, cataloged under National Stock Number 4320-01-480-3128, 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 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-480-3128
Primary Part Number628551
Item NamePump,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
3120-00-587-6032628551 INTERCHANGEABLE
Bearing,washer,thrust
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
3040-01-465-3862628556 INTERCHANGEABLE
Shaft,shouldered
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
Cross-Reference Index
Part NumberManufacturer
628551 Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
628551 A W Chesterton Co Div Sealing Device Division (USA)
1628551 A W Chesterton Co Div Sealing Device Division (USA)
Related Parts
3120-00-587-6032INTERCHANGEABLE
BEARING,WASHER,THRUST
628551
3040-01-465-3862INTERCHANGEABLE
SHAFT,SHOULDERED
628556

Frequently Asked Questions

What is NSN 4320-01-480-3128?

NSN 4320-01-480-3128 is a 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 4320-01-480-3128?

NSN 4320-01-480-3128 has 3 cross-referenced part numbers: 628551 (Blackmer System One, Inc. Div Blackmer System One, Inc.), 628551 (A W Chesterton Co Div Sealing Device Division), 1628551 (A W Chesterton Co Div Sealing Device Division).

What NSN replaces 4320-01-480-3128?

There are 2 known substitutes for 4320-01-480-3128: 3120-00-587-6032, 3040-01-465-3862. Verify interchangeability with system specifications before substitution.

What are the specifications of 628551?

Key specifications for 628551: End Item Identification: MK 7 MOD. 2 POWER DISTRIBUTION AND CONTROL. 1 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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