PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E-4325Pump,rotary

Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer · NSN 4320-01-128-6157 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-128-6157 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-128-6157. Primary manufacturer part number: E-4325.
Features
  • Pump,rotary — FSC 4320
  • Maximum Discharge Flow Rate: 100.0 GALLONS PER MINUTE
  • Discharge Pressure: 0.0 LIGHT COMMERCIAL HEATING AND COOLING - ENERGY STAR-HEATING AND COOLING - ENERGY EFFICIENT PRODUCTS
  • Operating Speed at Rated Capacity: 500.0 REVOLUTIONS PER MINUTE
  • 1 verified cross-reference
  • Primary manufacturer: Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,rotary, cataloged under National Stock Number 4320-01-128-6157, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4320-01-128-6157
Primary Part NumberE-4325
Item NamePump,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerDover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
StatusCANCELLED
Maximum Discharge Flow Rate100.0 GALLONS PER MINUTE
Discharge Pressure0.0 LIGHT COMMERCIAL HEATING AND COOLING - ENERGY STAR-HEATING AND COOLING - ENERGY EFFICIENT PRODUCTS
Operating Speed at Rated Capacity500.0 REVOLUTIONS PER MINUTE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
4320-01-138-2013265141 INTERCHANGEABLE
Rotor,pump
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
Cross-Reference Index
Part NumberManufacturer
E-4325 PRIMARY Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
Related Parts
4320-01-138-2013INTERCHANGEABLE
ROTOR,PUMP
265141

Frequently Asked Questions

What is NSN 4320-01-128-6157?

NSN 4320-01-128-6157 is a Pump,rotary, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 4320 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4320-01-128-6157?

NSN 4320-01-128-6157 has 1 cross-referenced part number: E-4325 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).

What NSN replaces 4320-01-128-6157?

There is 1 known substitute for 4320-01-128-6157: 4320-01-138-2013. Verify interchangeability with system specifications before substitution.

What are the specifications of E-4325?

Key specifications for E-4325: Maximum Discharge Flow Rate: 100.0 GALLONS PER MINUTE; Discharge Pressure: 0.0 LIGHT COMMERCIAL HEATING AND COOLING - ENERGY STAR-HEATING AND COOLING - ENERGY EFFICIENT PRODUCTS; Operating Speed at Rated Capacity: 500.0 REVOLUTIONS PER MINUTE. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4320-01-128-6157 still in active supply?

NSN 4320-01-128-6157 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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