PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

200501Disk,piston

Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer · NSN 4320-00-902-6403 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-902-6403 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-902-6403. Primary manufacturer part number: 200501.
Features
  • Disk,piston — FSC 4320
  • 1 verified cross-reference
  • Primary manufacturer: Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Disk,piston, cataloged under National Stock Number 4320-00-902-6403, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. 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 NameDisk,piston
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersDover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (CAGE 07524)
Technical Specifications
ParameterValue
NSN4320-00-902-6403
Primary Part Number200501
Item NameDisk,piston
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerDover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5342-00-485-2926 INTERCHANGEABLE
Cap,filler Opening
5365-00-556-67785566778 INTERCHANGEABLE
Shim
U S Army Tank Automotive Command Amsta-Im-Mm
3020-00-903-9631 INTERCHANGEABLE
Gear,spur
3120-01-047-802320-050-1 INTERCHANGEABLE
Bearing,plain,rod End
Bell Textron Inc
4140-01-072-2289 INTERCHANGEABLE
Fan,tubeaxial
2930-01-115-49951GR10 INTERCHANGEABLE
Cap,filler Opening
Oshkosh Defense Llc
5915-01-229-1726 INTERCHANGEABLE
Filter,band Pass
5950-01-422-486093377 IT-4 INTERCHANGEABLE
Transformer,power
Con-Tech Power Systems Iinc. Bernilled Plantcryogenicsschool of Medicine and Placement of Household Managers and Butlers
3110-01-489-5280200501 INTERCHANGEABLE
Bearing Main Ctr.up
Cummins Inc.
5360-01-613-976920050-1 INTERCHANGEABLE
Spring,helical,compression
Hydraulics International, Inc. Dba Hydraulics International Inc
Cross-Reference Index
Part NumberManufacturer
200501 PRIMARY Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
Related Parts
5342-00-485-2926INTERCHANGEABLE
CAP,FILLER OPENING
5365-00-556-6778INTERCHANGEABLE
SHIM
5566778
3020-00-903-9631INTERCHANGEABLE
GEAR,SPUR
3120-01-047-8023INTERCHANGEABLE
BEARING,PLAIN,ROD END
20-050-1
4140-01-072-2289INTERCHANGEABLE
FAN,TUBEAXIAL
2930-01-115-4995INTERCHANGEABLE
CAP,FILLER OPENING
1GR10
5915-01-229-1726INTERCHANGEABLE
FILTER,BAND PASS
5950-01-422-4860INTERCHANGEABLE
TRANSFORMER,POWER
93377 IT-4
3110-01-489-5280INTERCHANGEABLE
BEARING MAIN CTR.UP
200501
5360-01-613-9769INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
20050-1
1560-01-680-9967INTERCHANGEABLE
PANEL,STRUCTURAL,AIRCRAFT
20050.1

Frequently Asked Questions

What is NSN 4320-00-902-6403?

NSN 4320-00-902-6403 is a Disk,piston, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-902-6403?

NSN 4320-00-902-6403 has 1 cross-referenced part number: 200501 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).

What NSN replaces 4320-00-902-6403?

There are 11 known substitutes for 4320-00-902-6403: 5342-00-485-2926, 5365-00-556-6778, 3020-00-903-9631 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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