PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5663-4Gear Rotor Set,rotary Pump

Eaton Corporation Div Eaton Fluid Power · NSN 4320-00-189-5435 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-189-5435 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-189-5435. Primary manufacturer part number: 5663-4.
Features
  • Gear Rotor Set,rotary Pump — FSC 4320
  • 2 verified cross-references
  • Primary manufacturer: Eaton Corporation Div Eaton Fluid Power
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Power transmission and speed reduction
  • Rotary motion transfer
General Description

The Gear Rotor Set,rotary Pump, cataloged under National Stock Number 4320-00-189-5435, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Eaton Corporation Div Eaton Fluid Power. This item has 2 commercial cross-references from 1 manufacturer, 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
NSN4320-00-189-5435
Primary Part Number5663-4
Item NameGear Rotor Set,rotary Pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerEaton Corporation Div Eaton Fluid Power
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3020-00-021-18345663-8 INTERCHANGEABLE
Gear and Ring Assembly
Eaton Corporation Div Eaton Fluid Power
4820-00-078-254756634 INTERCHANGEABLE
Disk,valve
Spirax Sarco Inc Dba Spirax Sarco
1650-00-101-77905663 INTERCHANGEABLE
Sleeve,unloading
Eaton Aerospace, Llc Dba Jackson South
2530-00-124-57335663-7 INTERCHANGEABLE
Gear Set,internal and Star
Eaton Corporation Div Eaton Fluid Power
5960-00-193-5132 INTERCHANGEABLE
Electron Tube
3020-00-274-4519205663 INTERCHANGEABLE
Gear,spur
Dana Off Highway Products, Llc
5930-00-328-4175 INTERCHANGEABLE
Switch Assy
2805-00-353-89455663 INTERCHANGEABLE
Connecting Rod,piston
Mitsubishi Caterpillar Forklift America, Inc
2805-00-555-4367113-0088 INTERCHANGEABLE
Ring Set,piston
Cummins Power Generation Inc.
5960-00-617-8930 INTERCHANGEABLE
Electron Tube
Cross-Reference Index
Part NumberManufacturer
5663-4 PRIMARY Eaton Corporation Div Eaton Fluid Power (USA)
5663 Eaton Corporation Div Eaton Fluid Power (USA)
Related Parts
3020-00-021-1834INTERCHANGEABLE
GEAR AND RING ASSEMBLY
5663-8
4820-00-078-2547INTERCHANGEABLE
DISK,VALVE
56634
1650-00-101-7790INTERCHANGEABLE
SLEEVE,UNLOADING
5663
2530-00-124-5733INTERCHANGEABLE
GEAR SET,INTERNAL AND STAR
5663-7
5960-00-193-5132INTERCHANGEABLE
ELECTRON TUBE
3020-00-274-4519INTERCHANGEABLE
GEAR,SPUR
205663
5930-00-328-4175INTERCHANGEABLE
SWITCH ASSY
2805-00-353-8945INTERCHANGEABLE
CONNECTING ROD,PISTON
5663
2805-00-555-4367INTERCHANGEABLE
RING SET,PISTON
113-0088
5960-00-617-8930INTERCHANGEABLE
ELECTRON TUBE
5340-00-970-2740INTERCHANGEABLE
PLUG
566-3
6685-01-136-2137INTERCHANGEABLE
PSYCHROMETER
566-3

Frequently Asked Questions

What is NSN 4320-00-189-5435?

NSN 4320-00-189-5435 is a Gear Rotor Set,rotary Pump, manufactured by Eaton Corporation Div Eaton Fluid Power, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-189-5435?

NSN 4320-00-189-5435 has 2 cross-referenced part numbers: 5663-4 (Eaton Corporation Div Eaton Fluid Power), 5663 (Eaton Corporation Div Eaton Fluid Power).

What NSN replaces 4320-00-189-5435?

There are 12 known substitutes for 4320-00-189-5435: 3020-00-021-1834, 4820-00-078-2547, 1650-00-101-7790 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5663-4?

Key specifications for 5663-4: Special Features: C/O 1 OUTER GEAR W/7 LOBES,1 INNER GEAR W/6 LOBES,3.000 IN.DIA.O/A,0.863 IN.W O/A IN. 1 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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