PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55032Pump,axial Pistons

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 4320-00-864-8952 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-864-8952 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-864-8952. Primary manufacturer part number: 55032.
Features
  • Pump,axial Pistons — FSC 4320
  • Pump Reciprocating Design: SINGLE ACTING
  • Drive Shaft Length: 1.540 INCHES NOMINAL IN
  • Media for Which Designed: HYDROCARBON FUELS AND OILS
  • Drive Connection Type: SPUR GEAR
  • Operating Speed at Rated Capacity: 3750.0 REVOLUTIONS PER MINUTE
  • Volume Control Type: HYDRAULIC CYLINDER
  • Intake Connection Thread Size and Series/type Designator: 1.625-12 UN
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,axial Pistons, cataloged under National Stock Number 4320-00-864-8952, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Parker Hannifin Corporation Div Hydraulic Systems Division. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4320-00-864-8952
Primary Part Number55032
Item NamePump,axial Pistons
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusCANCELLED
Pump Reciprocating DesignSINGLE ACTING
Drive Shaft Length1.540 INCHES NOMINAL IN
Media for Which DesignedHYDROCARBON FUELS AND OILS
Drive Connection TypeSPUR GEAR
Operating Speed at Rated Capacity3750.0 REVOLUTIONS PER MINUTE
Volume Control TypeHYDRAULIC CYLINDER
Intake Connection Thread Size and Series/type Designator1.625-12 UN
Maximum Discharge Flow Rate25.0 GALLONS PER MINUTE
Pumping Element TypePISTON
Drive Shaft TypeSPLINED, STRAIGHT EXTERNAL
Control LocationCENTER
Intake Connection Quantity1
Discharge Pressure000.0 ENERGY EFFICIENT - FEMP - LOW STANDBY POWER - OFFICE EQUIPMENT -INTEGRATED COMPUTERS
Drive Shaft End Diameter0.867 INCHES NOMINAL IN
Discharge Connection Quantity1
Pump Rotation DirectionCLOCKWISE AND COUNTERCLOCKWISE
Mounting TypeBASE
Discharge Connection TypeTHREADED INTERNAL
Cylinder Quantity1
Discharge Connection Thread Size and Series/type Designator1.062-12 UN
Intake Connection TypeTHREADED INTERNAL
Reciprocating Stroke TypeVARIABLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5305-00-019-93175233 INTERCHANGEABLE
Screw,cap,socket Head
Air-Lock, Incorporated
5815-00-125-9763 INTERCHANGEABLE
Block,punch
5133-01-046-8870 INTERCHANGEABLE
Drill,twist
5970-01-057-6698DBX-101 INTERCHANGEABLE
Insulator,plate
The Delbert Blinn Co Inc
5330-01-241-270055032 INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
Cross-Reference Index
Part NumberManufacturer
AP10V13A Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
55032 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
668418-3 Lockheed Martin Corp (USA)
Related Parts
5305-00-019-9317INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5233
5815-00-125-9763INTERCHANGEABLE
BLOCK,PUNCH
5133-01-046-8870INTERCHANGEABLE
DRILL,TWIST
5970-01-057-6698INTERCHANGEABLE
INSULATOR,PLATE
DBX-101
5330-01-241-2700INTERCHANGEABLE
SEAL,PLAIN ENCASED
55032

Frequently Asked Questions

What is NSN 4320-00-864-8952?

NSN 4320-00-864-8952 is a Pump,axial Pistons, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 4320 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4320-00-864-8952?

NSN 4320-00-864-8952 has 3 cross-referenced part numbers: AP10V13A (Parker Hannifin Corporation Div Hydraulic Systems Division), 55032 (Parker Hannifin Corporation Div Hydraulic Systems Division), 668418-3 (Lockheed Martin Corp).

What NSN replaces 4320-00-864-8952?

There are 5 known substitutes for 4320-00-864-8952: 5305-00-019-9317, 5815-00-125-9763, 5133-01-046-8870 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55032?

Key specifications for 55032: Pump Reciprocating Design: SINGLE ACTING; Drive Shaft Length: 1.540 INCHES NOMINAL IN; Media for Which Designed: HYDROCARBON FUELS AND OILS; Drive Connection Type: SPUR GEAR. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4320-00-864-8952 still in active supply?

NSN 4320-00-864-8952 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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