PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R156Pump Unit,centrifugal

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-00-267-5027 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-267-5027 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-267-5027. Primary manufacturer part number: R156.
Features
  • Pump Unit,centrifugal — FSC 4320
  • Prime Mover Quantity: 1
  • Prime Mover Cooling Medium: AIR
  • Intake Connection Type: ROUND FLANGE
  • Media for Which Designed: WATER, SALT
  • Stage Quantity: 1
  • Pumping Element Operating Position: VERTICAL
  • Prime Mover Type: ELECTRIC MOTOR
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump Unit,centrifugal, cataloged under National Stock Number 4320-00-267-5027, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 27 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-267-5027
Primary Part NumberR156
Item NamePump Unit,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Prime Mover Quantity1
Prime Mover Cooling MediumAIR
Intake Connection TypeROUND FLANGE
Media for Which DesignedWATER, SALT
Stage Quantity1
Pumping Element Operating PositionVERTICAL
Prime Mover TypeELECTRIC MOTOR
Centrifugal Pump DesignRADIAL FLOW
Total Head43.500 FEET FT
Current Rating in Amps2.1
Inclosure TypePARTIALLY INCLOSED
Centrifugal Pump Impeller Quantity1
Operating Speed at Rated Capacity3500.0 REVOLUTIONS PER MINUTE
Centrifugal Pump Impeller Suction TypeSINGLE
Maximum Discharge Flow Rate3.3 GALLONS PER MINUTE
Discharge Pressure8.8 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES
PhaseTHREE
Voltage in Volts440.0
Reference Number Differentiating CharacteristicsWITH 440 V AC MOTOR AND CONTROLLER V
Cooling MethodSELF VENTILATED
Frequency in Hertz60.0
Discharge Connection TypeROUND FLANGE
Discharge Connection Quantity1
Current TypeAC
Pump Quantity1
Intake Connection Quantity1
Environmental ProtectionDRIPPROOF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5965-00-128-8756 INTERCHANGEABLE
Headset,electrical
4320-00-273-0936 INTERCHANGEABLE
Pump Unit,centrifugal
Cross-Reference Index
Part NumberManufacturer
R156 Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
5965-00-128-8756INTERCHANGEABLE
HEADSET,ELECTRICAL
4320-00-273-0936INTERCHANGEABLE
PUMP UNIT,CENTRIFUGAL

Frequently Asked Questions

What is NSN 4320-00-267-5027?

NSN 4320-00-267-5027 is a Pump Unit,centrifugal, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-267-5027?

NSN 4320-00-267-5027 has 1 cross-referenced part number: R156 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 4320-00-267-5027?

There are 2 known substitutes for 4320-00-267-5027: 5965-00-128-8756, 4320-00-273-0936. Verify interchangeability with system specifications before substitution.

What are the specifications of R156?

Key specifications for R156: Prime Mover Quantity: 1; Prime Mover Cooling Medium: AIR; Intake Connection Type: ROUND FLANGE; Media for Which Designed: WATER, SALT. 27 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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