PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23178Pump Subassembly,axial Piston,hy

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 4320-01-438-3091 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-438-3091 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-438-3091. Primary manufacturer part number: 23178.
Features
  • Pump Subassembly,axial Piston,hy — FSC 4320
  • 1 verified cross-reference
  • Primary manufacturer: Parker Hannifin Corporation Div Hydraulic Systems Division
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump Subassembly,axial Piston,hy, cataloged under National Stock Number 4320-01-438-3091, 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. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-438-3091
Primary Part Number23178
Item NamePump Subassembly,axial Piston,hy
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5325-00-090-489423178 INTERCHANGEABLE
Grommet
Vse Aviation, Inc.
5330-00-364-0907 INTERCHANGEABLE
Gasket
4320-00-391-952423178 INTERCHANGEABLE
Pump,centrifugal
Industrial Technologies and Services Llc
5330-00-544-121321-27 INTERCHANGEABLE
Gasket
Itt Mcdonnell-Miller a Unit of Itt Fluid Handling Div
2915-00-618-001723178 INTERCHANGEABLE
Filter,fluid
Pall Aeropower Corporation
4320-00-786-2064 INTERCHANGEABLE
Piston Assembly,fuel Pump
2540-01-084-3459NW23178 INTERCHANGEABLE
Arm,windshield Wiper
Tld Wollard Llc
3130-01-191-736423178 INTERCHANGEABLE
Cap,pillow Block
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
23178 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
Related Parts
5325-00-090-4894INTERCHANGEABLE
GROMMET
23178
5330-00-364-0907INTERCHANGEABLE
GASKET
4320-00-391-9524INTERCHANGEABLE
PUMP,CENTRIFUGAL
23178
5330-00-544-1213INTERCHANGEABLE
GASKET
21-27
2915-00-618-0017INTERCHANGEABLE
FILTER,FLUID
23178
4320-00-786-2064INTERCHANGEABLE
PISTON ASSEMBLY,FUEL PUMP
2540-01-084-3459INTERCHANGEABLE
ARM,WINDSHIELD WIPER
NW23178
3130-01-191-7364INTERCHANGEABLE
CAP,PILLOW BLOCK
23178

Frequently Asked Questions

What is NSN 4320-01-438-3091?

NSN 4320-01-438-3091 is a Pump Subassembly,axial Piston,hy, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-438-3091?

NSN 4320-01-438-3091 has 1 cross-referenced part number: 23178 (Parker Hannifin Corporation Div Hydraulic Systems Division).

What NSN replaces 4320-01-438-3091?

There are 8 known substitutes for 4320-01-438-3091: 5325-00-090-4894, 5330-00-364-0907, 4320-00-391-9524 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 23178?

Key specifications for 23178: End Item Identification: 4320-01-414-3371; Special Features: NAME ON DRAWING:HANGER SUBASSEMBLY;USED ON C-17. 2 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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