PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E-4185Pump Unit,rotary

Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer · NSN 4320-01-031-8594 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-031-8594 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-031-8594. Primary manufacturer part number: E-4185.
Features
  • Pump Unit,rotary — FSC 4320
  • Voltage in Volts: 230.0
  • Cooling Method: SELF VENTILATED
  • Operating Speed at Rated Capacity: 350.0 REVOLUTIONS PER MINUTE
  • Prime Mover Power Rating: 3.000 HORSEPOWER
  • Prime Mover Type: ELECTRIC MOTOR
  • Pumping Element Operating Position: HORIZONTAL
  • Rotary Pump Design: VANE
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump Unit,rotary, cataloged under National Stock Number 4320-01-031-8594, 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 21 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: Active.

Technical Specifications
ParameterValue
NSN4320-01-031-8594
Primary Part NumberE-4185
Item NamePump Unit,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerDover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
StatusACTIVE
Voltage in Volts230.0
Cooling MethodSELF VENTILATED
Operating Speed at Rated Capacity350.0 REVOLUTIONS PER MINUTE
Prime Mover Power Rating3.000 HORSEPOWER
Prime Mover TypeELECTRIC MOTOR
Pumping Element Operating PositionHORIZONTAL
Rotary Pump DesignVANE
Discharge Pressure0.0 WATER CONSERVING - WATER SAVING TECHNOLOGIES - LOW-FLOW PRE-RINSE SPRAY VALVES
Maximum Discharge Flow Rate15.0 GALLONS PER MINUTE
Inclosure TypeFULLY INCLOSED
Current Rating in Amps12.5
Media for Which DesignedWATER, SALT
Intake Connection Quantity1
Intake Connection TypeROUND FLANGE
Pump Quantity1
Current TypeDC
Discharge Connection TypeROUND FLANGE
Mounting TypeBASE
Prime Mover Quantity1
Discharge Connection Quantity1
Prime Mover Cooling MediumAIR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-209-1372A25574 INTERCHANGEABLE
Washer,recessed
Vse Aviation, Inc.
Cross-Reference Index
Part NumberManufacturer
E-4185 PRIMARY Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
Related Parts
5310-00-209-1372INTERCHANGEABLE
WASHER,RECESSED
A25574

Frequently Asked Questions

What is NSN 4320-01-031-8594?

NSN 4320-01-031-8594 is a Pump Unit,rotary, 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 4320-01-031-8594?

NSN 4320-01-031-8594 has 1 cross-referenced part number: E-4185 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).

What NSN replaces 4320-01-031-8594?

There is 1 known substitute for 4320-01-031-8594: 5310-00-209-1372. Verify interchangeability with system specifications before substitution.

What are the specifications of E-4185?

Key specifications for E-4185: Voltage in Volts: 230.0; Cooling Method: SELF VENTILATED; Operating Speed at Rated Capacity: 350.0 REVOLUTIONS PER MINUTE; Special Features: W/REDUCER AND CONTROLLER. 22 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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