PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

57A12B41Lever,spring

Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · NSN 5821-00-562-3603 · FSC 5821 · No Item Name Available
Verified by PartsTable
NSN 5821-00-562-3603 — this item is cataloged by the U.S. Government under National Stock Number 5821-00-562-3603. Primary manufacturer part number: 57A12B41.
Features
  • Lever,spring — FSC 5821
  • 4 verified cross-references
  • Primary manufacturer: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Lever,spring, cataloged under National Stock Number 5821-00-562-3603, is classified within Federal Supply Class 5821 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameLever,spring
FSC / FSG5821 — No Item Name Available (FSG 58)
ManufacturersNaval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (CAGE 30003); Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (CAGE 13499); Dahlberg Co (CAGE 07453); Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (CAGE 10001)
Technical Specifications
ParameterValue
NSN5821-00-562-3603
Primary Part Number57A12B41
Item NameLever,spring
FSC / FSG5821 / 58 — No Item Name Available
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6625-00-824-148960514 INTERCHANGEABLE
Meter,audio Level
Dynalec Corporation
6145-01-203-8509 INTERCHANGEABLE
Cable,special Purpose,electrical
3040-01-226-51542601090-001 INTERCHANGEABLE
Rack Release Assembly
Transdigm Inc
Cross-Reference Index
Part NumberManufacturer
57A12B41 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
505-5698-002 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
M1234 Dahlberg Co (USA)
57A12B41 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
6625-00-824-1489INTERCHANGEABLE
METER,AUDIO LEVEL
60514
6145-01-203-8509INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
3040-01-226-5154INTERCHANGEABLE
RACK RELEASE ASSEMBLY
2601090-001

Frequently Asked Questions

What is NSN 5821-00-562-3603?

NSN 5821-00-562-3603 is a Lever,spring, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5821 (No Item Name Available). Status: active.

What are the part numbers for NSN 5821-00-562-3603?

NSN 5821-00-562-3603 has 4 cross-referenced part numbers: 57A12B41 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 505-5698-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), M1234 (Dahlberg Co), 57A12B41 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5821-00-562-3603?

There are 3 known substitutes for 5821-00-562-3603: 6625-00-824-1489, 6145-01-203-8509, 3040-01-226-5154. Verify interchangeability with system specifications before substitution.

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