PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E-3962KPump,centrifugal

Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer · NSN 4320-01-043-8171 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-043-8171 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-043-8171. Primary manufacturer part number: E-3962K.
Features
  • Pump,centrifugal — FSC 4320
  • Operating Speed at Rated Capacity: 115.0 REVOLUTIONS PER MINUTE
  • Discharge Connection Quantity: 1
  • Maximum Discharge Flow Rate: 15.0 GALLONS PER MINUTE
  • Centrifugal Pump Design: RADIAL FLOW
  • Volume Control Type: ROTARY
  • Pumping Element Operating Position: VERTICAL
  • Intake Connection Type: ROUND FLANGE
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,centrifugal, cataloged under National Stock Number 4320-01-043-8171, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-043-8171
Primary Part NumberE-3962K
Item NamePump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerDover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
StatusACTIVE
Operating Speed at Rated Capacity115.0 REVOLUTIONS PER MINUTE
Discharge Connection Quantity1
Maximum Discharge Flow Rate15.0 GALLONS PER MINUTE
Centrifugal Pump DesignRADIAL FLOW
Volume Control TypeROTARY
Pumping Element Operating PositionVERTICAL
Intake Connection TypeROUND FLANGE
Intake Connection Quantity1
Mounting TypeBASE
Drive Connection TypeRIGID COUPLED
Centrifugal Pump Impeller Suction TypeSINGLE
Pump Rotation DirectionCLOCKWISE
Drive Shaft Length2.437 INCHES NOMINAL IN
Discharge Connection TypeROUND FLANGE
Drive Shaft TypeTHREADED
Stage Quantity1
Control LocationRIGHT SIDE
Centrifugal Pump Impeller Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3120-00-213-0833 INTERCHANGEABLE
Bearing,sleeve
4320-01-074-3112E-3962-23 INTERCHANGEABLE
Pump,rotary
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
3040-01-163-8555210118 INTERCHANGEABLE
Shaft,straight
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
4320-01-195-6138020480 INTERCHANGEABLE
Housing,liquid Pump
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
5340-01-205-9406700438 INTERCHANGEABLE
Bracket,wall,pump
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
4320-01-281-4395PAB 414NFB 1 1/2 INTERCHANGEABLE
Pump,rotary
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
4320-01-390-4861 INTERCHANGEABLE
Pump,rotary
4320-01-549-9628E-3962-26 INTERCHANGEABLE
Pump,reciprocating
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
4930-01-675-7239 INTERCHANGEABLE
Dispensing Pump,hand Driven
Cross-Reference Index
Part NumberManufacturer
PAB414NAFC3-4 Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
E-3962 Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
E-3962K PRIMARY Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
E3962REVD-PAB414NAFC3-4IN Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
Related Parts
3120-00-213-0833INTERCHANGEABLE
BEARING,SLEEVE
4320-01-074-3112INTERCHANGEABLE
PUMP,ROTARY
E-3962-23
3040-01-163-8555INTERCHANGEABLE
SHAFT,STRAIGHT
210118
4320-01-195-6138INTERCHANGEABLE
HOUSING,LIQUID PUMP
020480
5340-01-205-9406INTERCHANGEABLE
BRACKET,WALL,PUMP
700438
4320-01-281-4395INTERCHANGEABLE
PUMP,ROTARY
PAB 414NFB 1 1/2
4320-01-390-4861INTERCHANGEABLE
PUMP,ROTARY
4320-01-549-9628INTERCHANGEABLE
PUMP,RECIPROCATING
E-3962-26
4930-01-675-7239INTERCHANGEABLE
DISPENSING PUMP,HAND DRIVEN

Frequently Asked Questions

What is NSN 4320-01-043-8171?

NSN 4320-01-043-8171 is a Pump,centrifugal, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-043-8171?

NSN 4320-01-043-8171 has 4 cross-referenced part numbers: PAB414NAFC3-4 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer), E-3962 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer), E-3962K (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer), E3962REVD-PAB414NAFC3-4IN (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).

What NSN replaces 4320-01-043-8171?

There are 9 known substitutes for 4320-01-043-8171: 3120-00-213-0833, 4320-01-074-3112, 3040-01-163-8555 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E-3962K?

Key specifications for E-3962K: Operating Speed at Rated Capacity: 115.0 REVOLUTIONS PER MINUTE; Discharge Connection Quantity: 1; Maximum Discharge Flow Rate: 15.0 GALLONS PER MINUTE; Centrifugal Pump Design: RADIAL FLOW. 18 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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