PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SG3855Pump Unit,rotary

Circor Pumps North America Llc · NSN 4320-00-839-1601 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-839-1601 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-839-1601. Primary manufacturer part number: SG3855.
Features
  • Pump Unit,rotary — FSC 4320
  • Prime Mover Quantity: 1
  • Current Type: AC
  • Environmental Protection: DRIPPROOF
  • Pumping Element Operating Position: VERTICAL
  • Discharge Pressure: 5.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME
  • Maximum Discharge Flow Rate: 15.0 GALLONS PER MINUTE
  • Inclosure Type: PARTIALLY INCLOSED
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump Unit,rotary, cataloged under National Stock Number 4320-00-839-1601, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Circor Pumps North America Llc. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN4320-00-839-1601
Primary Part NumberSG3855
Item NamePump Unit,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Pumps North America Llc
StatusACTIVE
Prime Mover Quantity1
Current TypeAC
Environmental ProtectionDRIPPROOF
Pumping Element Operating PositionVERTICAL
Discharge Pressure5.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME
Maximum Discharge Flow Rate15.0 GALLONS PER MINUTE
Inclosure TypePARTIALLY INCLOSED
Current Rating in Amps1.8
Prime Mover TypeELECTRIC MOTOR
Operating Speed at Rated Capacity1150.0 REVOLUTIONS PER MINUTE
Rotary Pump DesignSCREW
PhaseTHREE
Prime Mover Power Rating1.000 HORSEPOWER
Voltage in Volts440.0
Cooling MethodSELF VENTILATED
Frequency in Hertz60.0
Nondefinitive Spec/std Data3 TYPE AND 0-2 CLASS
Discharge Connection Quantity1
Intake Connection Quantity1
Media for Which DesignedOIL
Discharge Connection TypeROUND FLANGE
Pump Quantity1
Intake Connection TypeROUND FLANGE
Prime Mover Cooling MediumAIR
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
4320-00-579-3429 INTERCHANGEABLE
Pump Unit,rotary
4320-00-922-5939 INTERCHANGEABLE
Pump Unit,rotary
4320-01-145-6471 INTERCHANGEABLE
Pump,rotary
Cross-Reference Index
Part NumberManufacturer
MILP19131 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
SG3855 PRIMARY Circor Pumps North America Llc (USA)
SG3855 Siemens Energy, Inc. (USA)
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
4320-00-579-3429INTERCHANGEABLE
PUMP UNIT,ROTARY
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 4320-00-839-1601?

NSN 4320-00-839-1601 is a Pump Unit,rotary, manufactured by Circor Pumps North America Llc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-839-1601?

NSN 4320-00-839-1601 has 3 cross-referenced part numbers: MILP19131 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), SG3855 (Circor Pumps North America Llc), SG3855 (Siemens Energy, Inc.).

What NSN replaces 4320-00-839-1601?

There are 12 known substitutes for 4320-00-839-1601: 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 SG3855?

Key specifications for SG3855: Prime Mover Quantity: 1; Current Type: AC; Environmental Protection: DRIPPROOF; Pumping Element Operating Position: VERTICAL. 24 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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