PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20450Starter Assy,heavy

Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems · NSN 1730-00-588-4903 · FSC 1730 · No Item Name Available
Verified by PartsTable
NSN 1730-00-588-4903 — this item is cataloged by the U.S. Government under National Stock Number 1730-00-588-4903. Primary manufacturer part number: 20450.
Features
  • Starter Assy,heavy — FSC 1730
  • Test Data Document: 77646-20450 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
  • 2 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Starter Assy,heavy, cataloged under National Stock Number 1730-00-588-4903, is classified within Federal Supply Class 1730 (No Item Name Available) of the Aircraft Launch, Landing, and Ground Handling Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1730-00-588-4903
Primary Part Number20450
Item NameStarter Assy,heavy
FSC / FSG1730 / 17 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
StatusACTIVE
Test Data Document77646-20450 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5310-00-434-4267 INTERCHANGEABLE
Nut,plain,hexagon
4720-00-890-632820450 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5970-00-944-8957204-10 INTERCHANGEABLE
Tape,insulation,electrical
Rogers Corporation
6515-01-262-7425204.050 INTERCHANGEABLE
Screw,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
5365-01-278-615720450 INTERCHANGEABLE
Shim
Tulsa Winch, Inc.
5340-01-320-979020450 INTERCHANGEABLE
Clevis,rod End
Dana Commercial Vehicle Products, Llc
2590-01-566-540520450 INTERCHANGEABLE
Parts Kit,linear Actuating Cylin
Stellar Industries, Inc.
4730-01-653-848820450 INTERCHANGEABLE
Coupling,clamp,pipe
Birdon America Inc
Cross-Reference Index
Part NumberManufacturer
20450 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
20450 PRIMARY Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems (USA)
Related Parts
5310-00-434-4267INTERCHANGEABLE
NUT,PLAIN,HEXAGON
4720-00-890-6328INTERCHANGEABLE
HOSE,PREFORMED
20450
5970-00-944-8957INTERCHANGEABLE
TAPE,INSULATION,ELECTRICAL
204-10
6515-01-262-7425INTERCHANGEABLE
SCREW,BONE
204.050
5365-01-278-6157INTERCHANGEABLE
SHIM
20450
5340-01-320-9790INTERCHANGEABLE
CLEVIS,ROD END
20450
2590-01-566-5405INTERCHANGEABLE
PARTS KIT,LINEAR ACTUATING CYLIN
20450
4730-01-653-8488INTERCHANGEABLE
COUPLING,CLAMP,PIPE
20450

Frequently Asked Questions

What is NSN 1730-00-588-4903?

NSN 1730-00-588-4903 is a Starter Assy,heavy, manufactured by Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems, classified under FSC 1730 (No Item Name Available). Status: active.

What are the part numbers for NSN 1730-00-588-4903?

NSN 1730-00-588-4903 has 2 cross-referenced part numbers: 20450 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 20450 (Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems).

What NSN replaces 1730-00-588-4903?

There are 8 known substitutes for 1730-00-588-4903: 5310-00-434-4267, 4720-00-890-6328, 5970-00-944-8957 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20450?

Key specifications for 20450: Test Data Document: 77646-20450 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING). 1 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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