PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51011-3Lead,ignition,engine

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 2920-00-843-1718 · FSC 2920 · No Item Name Available
Verified by PartsTable
NSN 2920-00-843-1718 — this item is cataloged by the U.S. Government under National Stock Number 2920-00-843-1718. Primary manufacturer part number: MS51011-3.
Features
  • Lead,ignition,engine — FSC 2920
  • 7 verified cross-references
  • Primary manufacturer: Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Mechanical power generation
  • Drive system operation
  • Auxiliary equipment operation
General Description

The Lead,ignition,engine, cataloged under National Stock Number 2920-00-843-1718, is classified within Federal Supply Class 2920 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2920-00-843-1718
Primary Part NumberMS51011-3
Item NameLead,ignition,engine
FSC / FSG2920 / 29 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
1650-00-116-572339003 INTERCHANGEABLE
Retainer,swivel
Lourdes Industries, Inc.
3010-00-528-9944015-0257-000 INTERCHANGEABLE
Coupling,shaft,rigid
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5950-00-810-67842041962 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5920-00-876-331239-003 INTERCHANGEABLE
Retainer,fuse
Lockheed Martin Corporation Div Rms - Mitchel Field
2920-00-898-9251 INTERCHANGEABLE
Lead,ignition,engine
2920-00-924-2042 INTERCHANGEABLE
Lead,ignition,engine
2920-00-941-6108 INTERCHANGEABLE
Lead,ignition,engine
4810-01-412-81363500039-003 INTERCHANGEABLE
Valve,solenoid
Evac North America Inc
5340-01-482-428110594 INTERCHANGEABLE
Clevis,rod End
Orscheln Products L.l.c.
Cross-Reference Index
Part NumberManufacturer
MS51011-3 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
A-A-55538-003 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
3900-3 Ryan Equipment Co Inc (USA)
AA55538-003 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-55538 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
3900-3 Champion Aerospace Llc (USA)
XH5955 Heale Manufacturing Co Llc (USA)
Related Parts
1650-00-116-5723INTERCHANGEABLE
RETAINER,SWIVEL
39003
3010-00-528-9944INTERCHANGEABLE
COUPLING,SHAFT,RIGID
015-0257-000
5950-00-810-6784INTERCHANGEABLE
TRANSFORMER,POWER
2041962
5920-00-876-3312INTERCHANGEABLE
RETAINER,FUSE
39-003
2920-00-898-9251INTERCHANGEABLE
LEAD,IGNITION,ENGINE
2920-00-924-2042INTERCHANGEABLE
LEAD,IGNITION,ENGINE
2920-00-941-6108INTERCHANGEABLE
LEAD,IGNITION,ENGINE
4810-01-412-8136INTERCHANGEABLE
VALVE,SOLENOID
3500039-003
5340-01-482-4281INTERCHANGEABLE
CLEVIS,ROD END
10594

Frequently Asked Questions

What is NSN 2920-00-843-1718?

NSN 2920-00-843-1718 is a Lead,ignition,engine, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 2920 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2920-00-843-1718?

NSN 2920-00-843-1718 has 7 cross-referenced part numbers: MS51011-3 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), A-A-55538-003 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), 3900-3 (Ryan Equipment Co Inc), AA55538-003 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-55538 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 2 more.

What NSN replaces 2920-00-843-1718?

There are 9 known substitutes for 2920-00-843-1718: 1650-00-116-5723, 3010-00-528-9944, 5950-00-810-6784 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51011-3?

Key specifications for MS51011-3: End Item Identification: A-10 AIRCRAFT. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2920-00-843-1718 still in active supply?

NSN 2920-00-843-1718 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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