PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1231-41Pump,rotary

Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. · NSN 4320-00-495-6297 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-495-6297 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-495-6297. Primary manufacturer part number: 1231-41.
Features
  • Pump,rotary — FSC 4320
  • Media for Which Designed: HYDROCARBON FUELS AND OILS
  • Intake Connection Thread Size and Series/type Designator: 0.125-27 NPT
  • Rotary Pump Design: GEAR
  • Discharge Connection Thread Size and Series/type Designator: 0.125-27 NPT
  • Intake Connection Quantity: 1
  • Discharge Connection Type: THREADED INTERNAL
  • Operation Method: POWERED
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,rotary, cataloged under National Stock Number 4320-00-495-6297, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.. Government technical data includes 18 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-495-6297
Primary Part Number1231-41
Item NamePump,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerMeggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
StatusACTIVE
Media for Which DesignedHYDROCARBON FUELS AND OILS
Intake Connection Thread Size and Series/type Designator0.125-27 NPT
Rotary Pump DesignGEAR
Discharge Connection Thread Size and Series/type Designator0.125-27 NPT
Intake Connection Quantity1
Discharge Connection TypeTHREADED INTERNAL
Operation MethodPOWERED
Drive Connection TypeCLOSE COUPLED
Discharge Pressure00.0 LIGHT COMMERCIAL HEATING AND COOLING - ENERGY STAR-HEATING AND COOLING - ENERGY EFFICIENT PRODUCTS
Drive Shaft TypeTONGUE
Intake Connection TypeTHREADED INTERNAL
Drive Shaft End Diameter0.250 INCHES NOMINAL IN
Discharge Connection Quantity1
Operating Speed at Rated Capacity5200.0 REVOLUTIONS PER MINUTE
Drive Shaft Length0.500 INCHES NOMINAL IN
Maximum Discharge Flow Rate1.0 GALLONS PER MINUTE
Pumping Element Operating PositionHORIZONTAL
Pump Rotation DirectionCLOCKWISE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5365-00-392-1870123141 INTERCHANGEABLE
Bushing,machine Thread
Telemechanics Inc
5961-00-650-9651 INTERCHANGEABLE
Semiconductor Device,diode
3110-01-194-08921231-004-001 INTERCHANGEABLE
Plate,retaining,bearing
Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center
5999-01-517-7141123141 INTERCHANGEABLE
Shielding Gasket,electronic
Kollmorgen Corp
Cross-Reference Index
Part NumberManufacturer
1231-41 Howden Fluid Systems (USA)
A69-148 Hall Industries Inc (USA)
1231-41 PRIMARY Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA)
Related Parts
5365-00-392-1870INTERCHANGEABLE
BUSHING,MACHINE THREAD
123141
5961-00-650-9651INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
3110-01-194-0892INTERCHANGEABLE
PLATE,RETAINING,BEARING
1231-004-001
5999-01-517-7141INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
123141

Frequently Asked Questions

What is NSN 4320-00-495-6297?

NSN 4320-00-495-6297 is a Pump,rotary, manufactured by Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc., classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-495-6297?

NSN 4320-00-495-6297 has 3 cross-referenced part numbers: 1231-41 (Howden Fluid Systems), A69-148 (Hall Industries Inc), 1231-41 (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.).

What NSN replaces 4320-00-495-6297?

There are 4 known substitutes for 4320-00-495-6297: 5365-00-392-1870, 5961-00-650-9651, 3110-01-194-0892 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1231-41?

Key specifications for 1231-41: Media for Which Designed: HYDROCARBON FUELS AND OILS; Intake Connection Thread Size and Series/type Designator: 0.125-27 NPT; Rotary Pump Design: GEAR; Discharge Connection Thread Size and Series/type Designator: 0.125-27 NPT. 18 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