PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1978823Modulator Group,radar

Northrop Grumman Systems Corporation · NSN 5840-01-415-4669 · FSC 5840 · No Item Name Available
Verified by PartsTable
NSN 5840-01-415-4669 — this item is cataloged by the U.S. Government under National Stock Number 5840-01-415-4669. Primary manufacturer part number: 1978823.
Features
  • Modulator Group,radar — FSC 5840
  • End Item Name: RECEIVER-TRANSMITTER
  • 3 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Modulator Group,radar, cataloged under National Stock Number 5840-01-415-4669, is classified within Federal Supply Class 5840 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5840-01-415-4669
Primary Part Number1978823
Item NameModulator Group,radar
FSC / FSG5840 / 58 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
End Item NameRECEIVER-TRANSMITTER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5340-01-220-41767340 INTERCHANGEABLE
Snap Hook
Baron Manufacturing Co Llc
5342-01-239-7581 INTERCHANGEABLE
Bracket,engine Accessory
Cross-Reference Index
Part NumberManufacturer
1978823 PRIMARY Northrop Grumman Systems Corporation (USA)
1978823 PRIMARY Naval Surface Warfare Center Dba Port Hueneme Detachent Virginia Beach (USA)
M-723 L3 Technologies, Inc. Dba Electron Devices (USA)
Related Parts
5340-01-220-4176INTERCHANGEABLE
SNAP HOOK
7340
5342-01-239-7581INTERCHANGEABLE
BRACKET,ENGINE ACCESSORY

Frequently Asked Questions

What is NSN 5840-01-415-4669?

NSN 5840-01-415-4669 is a Modulator Group,radar, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5840 (No Item Name Available). Status: active.

What are the part numbers for NSN 5840-01-415-4669?

NSN 5840-01-415-4669 has 3 cross-referenced part numbers: 1978823 (Northrop Grumman Systems Corporation), 1978823 (Naval Surface Warfare Center Dba Port Hueneme Detachent Virginia Beach), M-723 (L3 Technologies, Inc. Dba Electron Devices).

What NSN replaces 5840-01-415-4669?

There are 2 known substitutes for 5840-01-415-4669: 5340-01-220-4176, 5342-01-239-7581. Verify interchangeability with system specifications before substitution.

What are the specifications of 1978823?

Key specifications for 1978823: End Item Name: RECEIVER-TRANSMITTER. 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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