PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21136Piston,pump

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 4320-01-303-3888 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-303-3888 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-303-3888. Primary manufacturer part number: 21136.
Features
  • Piston,pump — 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 Piston,pump, cataloged under National Stock Number 4320-01-303-3888, 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePiston,pump
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersParker Hannifin Corporation Div Hydraulic Systems Division (CAGE 93835)
Technical Specifications
ParameterValue
NSN4320-01-303-3888
Primary Part Number21136
Item NamePiston,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
8010-00-297-0587 INTERCHANGEABLE
Enamel
5841-00-338-854721136 INTERCHANGEABLE
Clamp
Raytheon Company Dba Raytheon
5930-00-621-2205PM21136 INTERCHANGEABLE
Switch,trigger
Mason Electric Co. Dba Mason Controls
4820-00-717-371821136-2 INTERCHANGEABLE
Valve,check
Mission Systems Orchard Park Inc
4810-00-821-432521136 INTERCHANGEABLE
Parts Kit,valve
Moog Military Aircraft Llc
6130-00-928-164221136 INTERCHANGEABLE
Power Supply
Senior Operations Llc Div Senior Aerospace Ketema
2590-01-066-792824779 INTERCHANGEABLE
Manifold,winch
Paccar Winch Inc Dba Paccar Winch Division
1680-01-070-902721136 INTERCHANGEABLE
Receiver Assy
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
4320-01-096-101821136 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
3040-01-414-036321136-1004-1 INTERCHANGEABLE
Shaft,shouldered
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21136 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
Related Parts
8010-00-297-0587INTERCHANGEABLE
ENAMEL
5841-00-338-8547INTERCHANGEABLE
CLAMP
21136
5930-00-621-2205INTERCHANGEABLE
SWITCH,TRIGGER
PM21136
4820-00-717-3718INTERCHANGEABLE
VALVE,CHECK
21136-2
4810-00-821-4325INTERCHANGEABLE
PARTS KIT,VALVE
21136
6130-00-928-1642INTERCHANGEABLE
POWER SUPPLY
21136
2590-01-066-7928INTERCHANGEABLE
MANIFOLD,WINCH
24779
1680-01-070-9027INTERCHANGEABLE
RECEIVER ASSY
21136
4320-01-096-1018INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
21136
3040-01-414-0363INTERCHANGEABLE
SHAFT,SHOULDERED
21136-1004-1
6240-01-664-1817INTERCHANGEABLE
LAMP,FLUORESCENT

Frequently Asked Questions

What is NSN 4320-01-303-3888?

NSN 4320-01-303-3888 is a Piston,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 4320-01-303-3888?

NSN 4320-01-303-3888 has 1 cross-referenced part number: 21136 (Parker Hannifin Corporation Div Hydraulic Systems Division).

What NSN replaces 4320-01-303-3888?

There are 11 known substitutes for 4320-01-303-3888: 8010-00-297-0587, 5841-00-338-8547, 5930-00-621-2205 and 8 more. Verify interchangeability with system specifications before substitution.

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