PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NA1802Pump Unit,centrifugal

Air & Liquid Systems Corporation Dba Buffalo Pumps · NSN 4320-01-423-3431 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-423-3431 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-423-3431. Primary manufacturer part number: NA1802.
Features
  • Pump Unit,centrifugal — FSC 4320
  • Centrifugal Pump Impeller Quantity: 1
  • Mounting Type: FRAME
  • Prime Mover Type: ELECTRIC MOTOR
  • Phase: THREE
  • Intake Connection Type: ROUND FLANGE
  • Centrifugal Pump Design: MIXED FLOW
  • Frequency in Hertz: 60.0
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump Unit,centrifugal, cataloged under National Stock Number 4320-01-423-3431, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Air & Liquid Systems Corporation Dba Buffalo Pumps. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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
NSN4320-01-423-3431
Primary Part NumberNA1802
Item NamePump Unit,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerAir & Liquid Systems Corporation Dba Buffalo Pumps
StatusACTIVE
Centrifugal Pump Impeller Quantity1
Mounting TypeFRAME
Prime Mover TypeELECTRIC MOTOR
PhaseTHREE
Intake Connection TypeROUND FLANGE
Centrifugal Pump DesignMIXED FLOW
Frequency in Hertz60.0
Maximum Discharge Flow Rate100.0 GALLONS PER MINUTE
Operating Speed at Rated Capacity3500.0 REVOLUTIONS PER MINUTE
Total Head135.000 FEET FT
Pumping Element Operating PositionHORIZONTAL
Discharge Connection Quantity1
Prime Mover Power Rating15.0 HORSEPOWER
Operation Relationship DesignSIMULTANEOUS
Media for Which DesignedSEWAGE
Voltage in Volts440.0
Prime Mover Quantity1
Discharge Connection TypeROUND FLANGE
Current TypeAC
Discharge Pressure8.5 WATER CONSERVING - WATER SAVING TECHNOLOGIES - LOW-FLOW PRE-RINSE SPRAY VALVES
Current Rating in Amps17.2
Pump Quantity1
Suction Lift16.000 FEET FT
Intake Connection Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4730-01-422-7216249-33-968 INTERCHANGEABLE
Plug,pipe
Air & Liquid Systems Corporation Dba Buffalo Pumps
4730-01-422-7220249-33-1016 INTERCHANGEABLE
Plug,pipe
Air & Liquid Systems Corporation Dba Buffalo Pumps
4320-01-423-34103-0447-01 INTERCHANGEABLE
Impeller,pump,centrifugal
Air & Liquid Systems Corporation Dba Buffalo Pumps
4320-01-423-34138-0214-01 INTERCHANGEABLE
Sleeve,shaft,pump
Air & Liquid Systems Corporation Dba Buffalo Pumps
4320-01-423-3414PL.058CRSP-1 ITEM 10 INTERCHANGEABLE
Ring,wearing
Air & Liquid Systems Corporation Dba Buffalo Pumps
4320-01-423-3416150-0005-01 INTERCHANGEABLE
Deflector,dirt and Liquid
Air & Liquid Systems Corporation Dba Buffalo Pumps
4320-01-423-35872-0194-01 INTERCHANGEABLE
Housing,liquid Pump
Air & Liquid Systems Corporation Dba Buffalo Pumps
4930-01-423-358830054 INTERCHANGEABLE
Lubricator
Trico Corporation Div Trico Corp
4320-01-423-44246-0116-01 INTERCHANGEABLE
Cover,hydraulic,pump-Motor
Air & Liquid Systems Corporation Dba Buffalo Pumps
Cross-Reference Index
Part NumberManufacturer
PL.058CRSP-1 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
NA1802 PRIMARY Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
CA16173 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
058CRSP-1 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
CA16183 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
Related Parts
4730-01-422-7216INTERCHANGEABLE
PLUG,PIPE
249-33-968
4730-01-422-7220INTERCHANGEABLE
PLUG,PIPE
249-33-1016
4320-01-423-3410INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
3-0447-01
4320-01-423-3413INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
8-0214-01
4320-01-423-3414INTERCHANGEABLE
RING,WEARING
PL.058CRSP-1 ITEM 10
4320-01-423-3416INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
150-0005-01
4320-01-423-3587INTERCHANGEABLE
HOUSING,LIQUID PUMP
2-0194-01
4930-01-423-3588INTERCHANGEABLE
LUBRICATOR
30054
4320-01-423-4424INTERCHANGEABLE
COVER,HYDRAULIC,PUMP-MOTOR
6-0116-01

Frequently Asked Questions

What is NSN 4320-01-423-3431?

NSN 4320-01-423-3431 is a Pump Unit,centrifugal, manufactured by Air & Liquid Systems Corporation Dba Buffalo Pumps, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-423-3431?

NSN 4320-01-423-3431 has 5 cross-referenced part numbers: PL.058CRSP-1 (Air & Liquid Systems Corporation Dba Buffalo Pumps), NA1802 (Air & Liquid Systems Corporation Dba Buffalo Pumps), CA16173 (Air & Liquid Systems Corporation Dba Buffalo Pumps), 058CRSP-1 (Air & Liquid Systems Corporation Dba Buffalo Pumps), CA16183 (Air & Liquid Systems Corporation Dba Buffalo Pumps).

What NSN replaces 4320-01-423-3431?

There are 9 known substitutes for 4320-01-423-3431: 4730-01-422-7216, 4730-01-422-7220, 4320-01-423-3410 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NA1802?

Key specifications for NA1802: Centrifugal Pump Impeller Quantity: 1; Mounting Type: FRAME; Prime Mover Type: ELECTRIC MOTOR; Phase: THREE. 25 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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