PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

124-1900973 PART NO. 21Spindle,mechanically Actuated

Naval Sea Systems Command · NSN 3040-01-476-2489 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-476-2489 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-476-2489. Primary manufacturer part number: 124-1900973 PART NO. 21.
Features
  • Spindle,mechanically Actuated — FSC 3040
  • Material: STEEL
  • Material Document and Classification: MIL-N-3182 MIL SPEC SINGLE MATERIAL RESPONSE
  • 2 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • Applications requiring Steel construction
General Description

The Spindle,mechanically Actuated, cataloged under National Stock Number 3040-01-476-2489, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-476-2489
Primary Part Number124-1900973 PART NO. 21
Item NameSpindle,mechanically Actuated
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
MaterialSTEEL
Material Document and ClassificationMIL-N-3182 MIL SPEC SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5310-01-349-408802363-7 INTERCHANGEABLE
Nut,plain,hexagon
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5310-01-475-7192124-4322634 PC 31 INTERCHANGEABLE
Nut,plain,hexagon
Naval Sea Systems Command
5310-01-477-2318124-1900973 PART NO. 51 INTERCHANGEABLE
Nut,plain,hexagon
Naval Sea Systems Command
3040-01-479-7762124-1900973 PART N0. 26 INTERCHANGEABLE
Bracket,eye,nonrotating Shaft
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
1900973 Naval Sea Systems Command (USA)
124-1900973 PART NO. 21 PRIMARY Naval Sea Systems Command (USA)
Related Parts
5310-01-349-4088INTERCHANGEABLE
NUT,PLAIN,HEXAGON
02363-7
5310-01-475-7192INTERCHANGEABLE
NUT,PLAIN,HEXAGON
124-4322634 PC 31
5310-01-477-2318INTERCHANGEABLE
NUT,PLAIN,HEXAGON
124-1900973 PART NO. 51
3040-01-479-7762INTERCHANGEABLE
BRACKET,EYE,NONROTATING SHAFT
124-1900973 PART N0. 26

Frequently Asked Questions

What is NSN 3040-01-476-2489?

NSN 3040-01-476-2489 is a Spindle,mechanically Actuated, manufactured by Naval Sea Systems Command, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-476-2489?

NSN 3040-01-476-2489 has 2 cross-referenced part numbers: 1900973 (Naval Sea Systems Command), 124-1900973 PART NO. 21 (Naval Sea Systems Command).

What NSN replaces 3040-01-476-2489?

There are 4 known substitutes for 3040-01-476-2489: 5310-01-349-4088, 5310-01-475-7192, 5310-01-477-2318 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 124-1900973 PART NO. 21?

Key specifications for 124-1900973 PART NO. 21: Material: STEEL; Material Document and Classification: MIL-N-3182 MIL SPEC SINGLE MATERIAL RESPONSE; Special Features: NHA HINGED BALLISTIC DOORS - GANG OPR. - SOUND INS - ARR; End Item Identification: AIRCRAFT CARRIER CVA(N)65. 4 total characteristics are documented in the Federal Logistics Information System.

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