PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BA1250Pump Unit,rotary

Viking Pump, Inc · NSN 4320-00-435-7948 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-435-7948 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-435-7948. Primary manufacturer part number: BA1250.
Features
  • Pump Unit,rotary — FSC 4320
  • Pump Quantity: 1
  • Discharge Connection Quantity: 1
  • Media for Which Designed: HYDROCARBON FUELS AND OILS
  • Operating Speed at Rated Capacity: 1800.0 REVOLUTIONS PER MINUTE
  • Prime Mover Type: ELECTRIC MOTOR
  • Discharge Pressure: 5.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME
  • Current Rating in Amps: 1.8
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump Unit,rotary, cataloged under National Stock Number 4320-00-435-7948, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Viking Pump, Inc. Government technical data includes 25 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
NSN4320-00-435-7948
Primary Part NumberBA1250
Item NamePump Unit,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerViking Pump, Inc
StatusACTIVE
Pump Quantity1
Discharge Connection Quantity1
Media for Which DesignedHYDROCARBON FUELS AND OILS
Operating Speed at Rated Capacity1800.0 REVOLUTIONS PER MINUTE
Prime Mover TypeELECTRIC MOTOR
Discharge Pressure5.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME
Current Rating in Amps1.8
Rotary Pump DesignGEAR
Pumping Element Operating PositionHORIZONTAL
Inclosure TypePARTIALLY INCLOSED
Total Head74.000 FEET FT
Maximum Discharge Flow Rate10.0 GALLONS PER MINUTE
PhaseTHREE
Frequency in Hertz60.0
Cooling MethodSELF VENTILATED
Voltage in Volts440.0
Nondefinitive Spec/std DataN-2 CLASS AND VIII TYPE
Mounting TypeBASE
Intake Connection TypeROUND FLANGE
Prime Mover Cooling MediumAIR
Environmental ProtectionDRIPPROOF
Discharge Connection TypeROUND FLANGE
Current TypeAC
Intake Connection Quantity1
Prime Mover 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
4320-00-442-2723BA1285 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
4320-00-839-1601SG3855 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
BA1250 PRIMARY Viking Pump, Inc (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
4320-00-442-2723INTERCHANGEABLE
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
4320-00-839-1601INTERCHANGEABLE
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 4320-00-435-7948?

NSN 4320-00-435-7948 is a Pump Unit,rotary, manufactured by Viking Pump, Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-435-7948?

NSN 4320-00-435-7948 has 2 cross-referenced part numbers: BA1250 (Viking Pump, Inc), MILP19131 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4320-00-435-7948?

There are 12 known substitutes for 4320-00-435-7948: 4320-00-242-6390, 4320-00-431-0373, 4320-00-442-2723 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BA1250?

Key specifications for BA1250: Pump Quantity: 1; Discharge Connection Quantity: 1; Media for Which Designed: HYDROCARBON FUELS AND OILS; Operating Speed at Rated Capacity: 1800.0 REVOLUTIONS PER MINUTE. 26 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com