PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

32142Piston Assembly,pum

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 4320-01-118-5522 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-118-5522 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-118-5522. Primary manufacturer part number: 32142.
Features
  • Piston Assembly,pum — FSC 4320
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Piston Assembly,pum, cataloged under National Stock Number 4320-01-118-5522, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePiston Assembly,pum
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersEaton Aerospace Llc Dba Eaton Aerospace Jackson (CAGE 99643)
Technical Specifications
ParameterValue
NSN4320-01-118-5522
Primary Part Number32142
Item NamePiston Assembly,pum
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5355-00-421-538432142 INTERCHANGEABLE
Dial,scale
Aerosonic Llc
2540-00-431-6314228796 INTERCHANGEABLE
Pedal,control
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
2920-01-169-9680321-42 INTERCHANGEABLE
Generator,engine Accessory
Borgwarner Pds (anderson), L.l.c.
4820-01-245-912932142 INTERCHANGEABLE
Valve,diaphragm,stop
Alter Harry Co the Div of T E C
5330-01-333-4900 INTERCHANGEABLE
Packing,preformed
4730-01-384-893415604 INTERCHANGEABLE
Swivel Joint,pipe
Hydrasearch Company, Llc
6515-01-603-7531J944H INTERCHANGEABLE
Suture,absorbable,surgical
Ethicon Us Llc Div Ethicon
Cross-Reference Index
Part NumberManufacturer
32142 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5355-00-421-5384INTERCHANGEABLE
DIAL,SCALE
32142
2540-00-431-6314INTERCHANGEABLE
PEDAL,CONTROL
228796
2920-01-169-9680INTERCHANGEABLE
GENERATOR,ENGINE ACCESSORY
321-42
4820-01-245-9129INTERCHANGEABLE
VALVE,DIAPHRAGM,STOP
32142
5330-01-333-4900INTERCHANGEABLE
PACKING,PREFORMED
4730-01-384-8934INTERCHANGEABLE
SWIVEL JOINT,PIPE
15604
6515-01-603-7531INTERCHANGEABLE
SUTURE,ABSORBABLE,SURGICAL
J944H

Frequently Asked Questions

What is NSN 4320-01-118-5522?

NSN 4320-01-118-5522 is a Piston Assembly,pum, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-118-5522?

NSN 4320-01-118-5522 has 1 cross-referenced part number: 32142 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 4320-01-118-5522?

There are 7 known substitutes for 4320-01-118-5522: 5355-00-421-5384, 2540-00-431-6314, 2920-01-169-9680 and 4 more. Verify interchangeability with system specifications before substitution.

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