PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-2155Seal Assembly,shaft,spring Loade

Simplex Manufacturing Co. Dba Dart Aerospace · NSN 4320-01-358-9585 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-358-9585 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-358-9585. Primary manufacturer part number: A-2155.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • 2 verified cross-references
  • Primary manufacturer: Simplex Manufacturing Co. Dba Dart Aerospace
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Mechanical energy storage
  • Vibration dampening
General Description

The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-358-9585, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Simplex Manufacturing Co. Dba Dart Aerospace. This item has 2 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.

Catalog Facts
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersUs Army Medical Bioengineering Research and Development Laboratory (CAGE 53945); Simplex Manufacturing Co. Dba Dart Aerospace (CAGE 52905)
Technical Specifications
ParameterValue
NSN4320-01-358-9585
Primary Part NumberA-2155
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerSimplex Manufacturing Co. Dba Dart Aerospace
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4310-00-019-2107A2155 INTERCHANGEABLE
Disc,rupture
Fike Corporation
4820-00-075-0434 INTERCHANGEABLE
Disk,valve
5985-00-094-6289149225-1 INTERCHANGEABLE
Attenuator,variable
Northrop Grumman Systems Corporation
5935-00-240-31171200-0727 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Agilent Technologies, Inc. Div Agilent Technologies Headquarters
5930-00-296-96668495100 INTERCHANGEABLE
Switch,toggle
Us Army Aviation and Missile Command
5360-00-312-5342 INTERCHANGEABLE
Spring,helical,extension
6210-00-336-5867SYMBOL 2815.1 INTERCHANGEABLE
Light,indicator
Brantner and Associates, Inc.
9905-00-367-36342815 INTERCHANGEABLE
Plate,instruction
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
1650-00-397-5488 INTERCHANGEABLE
End Cap
5935-00-515-69642815 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
Cross-Reference Index
Part NumberManufacturer
2815 Us Army Medical Bioengineering Research and Development Laboratory (USA)
A-2155 PRIMARY Simplex Manufacturing Co. Dba Dart Aerospace (USA)
Related Parts
4310-00-019-2107INTERCHANGEABLE
DISC,RUPTURE
A2155
4820-00-075-0434INTERCHANGEABLE
DISK,VALVE
5985-00-094-6289INTERCHANGEABLE
ATTENUATOR,VARIABLE
149225-1
5935-00-240-3117INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
1200-0727
5930-00-296-9666INTERCHANGEABLE
SWITCH,TOGGLE
8495100
5360-00-312-5342INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
6210-00-336-5867INTERCHANGEABLE
LIGHT,INDICATOR
SYMBOL 2815.1
9905-00-367-3634INTERCHANGEABLE
PLATE,INSTRUCTION
2815
1650-00-397-5488INTERCHANGEABLE
END CAP
5935-00-515-6964INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2815
4730-00-686-1436INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
6130-00-852-0604INTERCHANGEABLE
POWER SUPPLY
A2155

Frequently Asked Questions

What is NSN 4320-01-358-9585?

NSN 4320-01-358-9585 is a Seal Assembly,shaft,spring Loade, manufactured by Simplex Manufacturing Co. Dba Dart Aerospace, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-358-9585?

NSN 4320-01-358-9585 has 2 cross-referenced part numbers: 2815 (Us Army Medical Bioengineering Research and Development Laboratory), A-2155 (Simplex Manufacturing Co. Dba Dart Aerospace).

What NSN replaces 4320-01-358-9585?

There are 12 known substitutes for 4320-01-358-9585: 4310-00-019-2107, 4820-00-075-0434, 5985-00-094-6289 and 9 more. Verify interchangeability with system specifications before substitution.

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