PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E3691Pump Unit,rotary

Naval Inventory Control Point Mechanicsburg · NSN 4320-00-579-3429 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-579-3429 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-579-3429. Primary manufacturer part number: E3691.
Features
  • Pump Unit,rotary — FSC 4320
  • Prime Mover Quantity: 1
  • Prime Mover Cooling Medium: AIR
  • Environmental Protection: SPLASH PROOF
  • Voltage in Volts: 440.0
  • Discharge Pressure: 0.0 WATER CONSERVING - WATER SAVING TECHNOLOGIES - LOW-FLOW PRE-RINSE SPRAY VALVES
  • Inclosure Type: FULLY INCLOSED
  • Maximum Discharge Flow Rate: 50.0 GALLONS PER MINUTE
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump Unit,rotary, cataloged under National Stock Number 4320-00-579-3429, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-579-3429
Primary Part NumberE3691
Item NamePump Unit,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Prime Mover Quantity1
Prime Mover Cooling MediumAIR
Environmental ProtectionSPLASH PROOF
Voltage in Volts440.0
Discharge Pressure0.0 WATER CONSERVING - WATER SAVING TECHNOLOGIES - LOW-FLOW PRE-RINSE SPRAY VALVES
Inclosure TypeFULLY INCLOSED
Maximum Discharge Flow Rate50.0 GALLONS PER MINUTE
Pumping Element Operating PositionHORIZONTAL
Current Rating in Amps4.5
Prime Mover TypeELECTRIC MOTOR
Operating Speed at Rated Capacity520.0 REVOLUTIONS PER MINUTE
Rotary Pump DesignVANE
Cooling MethodSELF VENTILATED
Frequency in Hertz60.0
PhaseTHREE
Current TypeAC
Discharge Connection Quantity1
Media for Which DesignedHYDROCARBON FUELS AND OILS
Pump Quantity1
Discharge Connection TypeROUND FLANGE
Intake Connection TypeROUND FLANGE
Intake Connection Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4320-00-242-6390E3428V1B INTERCHANGEABLE
Pump Unit,rotary
Naval Inventory Control Point Mechanicsburg
4320-00-431-0373 INTERCHANGEABLE
Pump Unit,rotary
4320-00-435-7948BA1250 INTERCHANGEABLE
Pump Unit,rotary
Viking Pump, Inc
4320-00-442-2723BA1285 INTERCHANGEABLE
Pump Unit,rotary
Viking Pump, Inc
4320-00-449-1178 INTERCHANGEABLE
Pump Unit,rotary
4320-00-478-0066E3429 INTERCHANGEABLE
Pump Unit,rotary
Naval Inventory Control Point Mechanicsburg
4320-00-554-6869 INTERCHANGEABLE
Pump,rotary
4320-00-839-1601SG3855 INTERCHANGEABLE
Pump Unit,rotary
Circor Pumps North America Llc
4320-00-922-5939 INTERCHANGEABLE
Pump Unit,rotary
4320-01-145-6471 INTERCHANGEABLE
Pump,rotary
Cross-Reference Index
Part NumberManufacturer
E3691 Naval Inventory Control Point Mechanicsburg (USA)
MILP19131 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4320-00-242-6390INTERCHANGEABLE
PUMP UNIT,ROTARY
E3428V1B
4320-00-431-0373INTERCHANGEABLE
PUMP UNIT,ROTARY
4320-00-435-7948INTERCHANGEABLE
PUMP UNIT,ROTARY
BA1250
4320-00-442-2723INTERCHANGEABLE
PUMP UNIT,ROTARY
BA1285
4320-00-449-1178INTERCHANGEABLE
PUMP UNIT,ROTARY
4320-00-478-0066INTERCHANGEABLE
PUMP UNIT,ROTARY
E3429
4320-00-554-6869INTERCHANGEABLE
PUMP,ROTARY
4320-00-839-1601INTERCHANGEABLE
PUMP UNIT,ROTARY
SG3855
4320-00-922-5939INTERCHANGEABLE
PUMP UNIT,ROTARY
4320-01-145-6471INTERCHANGEABLE
PUMP,ROTARY
4320-01-190-7096INTERCHANGEABLE
PUMP,ROTARY
E-4027F
4320-01-205-0525INTERCHANGEABLE
PUMP UNIT,ROTARY

Frequently Asked Questions

What is NSN 4320-00-579-3429?

NSN 4320-00-579-3429 is a Pump Unit,rotary, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-579-3429?

NSN 4320-00-579-3429 has 2 cross-referenced part numbers: E3691 (Naval Inventory Control Point Mechanicsburg), MILP19131 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4320-00-579-3429?

There are 12 known substitutes for 4320-00-579-3429: 4320-00-242-6390, 4320-00-431-0373, 4320-00-435-7948 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E3691?

Key specifications for E3691: Prime Mover Quantity: 1; Prime Mover Cooling Medium: AIR; Environmental Protection: SPLASH PROOF; Voltage in Volts: 440.0. 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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