PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21303Trunnion,pump

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 4320-01-194-8328 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-194-8328 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-194-8328. Primary manufacturer part number: 21303.
Features
  • Trunnion,pump — FSC 4320
  • 3 verified cross-references
  • Primary manufacturer: Parker Hannifin Corporation Div Hydraulic Systems Division
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Trunnion,pump, cataloged under National Stock Number 4320-01-194-8328, 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 3 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
NSN4320-01-194-8328
Primary Part Number21303
Item NameTrunnion,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-010-0653HRP43M INTERCHANGEABLE
Socket,plug-in Electronic Compon
Armel De Llc Dba Armel Electronics
5910-00-101-4884 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
5999-00-863-3730 INTERCHANGEABLE
Contact Assembly,electrical
1630-00-865-0548 INTERCHANGEABLE
Sleeve and Shuttle Assembly
3460-01-129-640321303 INTERCHANGEABLE
Clamp,machine,hold Down
Jergens Inc Div Tooling Components Division
5940-01-204-548321303 INTERCHANGEABLE
Terminal Board
Te Connectivity Corporation
3040-01-449-144021303-1008-1 INTERCHANGEABLE
Shaft,shouldered
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
3040-01-449-147121303-1009-1 INTERCHANGEABLE
Shaft,shouldered
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4810-01-449-158421303-1006-1 INTERCHANGEABLE
Guide,valve Stem
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4810-01-449-158921303-1012-1 INTERCHANGEABLE
Cap,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21303 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
21303 Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (USA)
56582 Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
Related Parts
5935-00-010-0653INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
HRP43M
5910-00-101-4884INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
5999-00-863-3730INTERCHANGEABLE
CONTACT ASSEMBLY,ELECTRICAL
1630-00-865-0548INTERCHANGEABLE
SLEEVE AND SHUTTLE ASSEMBLY
3460-01-129-6403INTERCHANGEABLE
CLAMP,MACHINE,HOLD DOWN
21303
5940-01-204-5483INTERCHANGEABLE
TERMINAL BOARD
21303
3040-01-449-1440INTERCHANGEABLE
SHAFT,SHOULDERED
21303-1008-1
3040-01-449-1471INTERCHANGEABLE
SHAFT,SHOULDERED
21303-1009-1
4810-01-449-1584INTERCHANGEABLE
GUIDE,VALVE STEM
21303-1006-1
4810-01-449-1589INTERCHANGEABLE
CAP,VALVE
21303-1012-1
4810-01-449-1591INTERCHANGEABLE
CAP,VALVE
21303-1011-1
6110-01-539-1090INTERCHANGEABLE
DISTRIBUTION BOX
2532

Frequently Asked Questions

What is NSN 4320-01-194-8328?

NSN 4320-01-194-8328 is a Trunnion,pump, 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 4320-01-194-8328?

NSN 4320-01-194-8328 has 3 cross-referenced part numbers: 21303 (Parker Hannifin Corporation Div Hydraulic Systems Division), 21303 (Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations), 56582 (Parker Hannifin Corporation Div Hydraulic Systems Division).

What NSN replaces 4320-01-194-8328?

There are 12 known substitutes for 4320-01-194-8328: 5935-00-010-0653, 5910-00-101-4884, 5999-00-863-3730 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21303?

Key specifications for 21303: End Item Identification: AH-64 AIRFRAME, ROTARY WING AIRCRAFT. 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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