PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

909-681-01Modulator

Repco Inc · NSN 5820-01-079-0831 · FSC 5820 · No Item Name Available
Verified by PartsTable
NSN 5820-01-079-0831 — this item is cataloged by the U.S. Government under National Stock Number 5820-01-079-0831. Primary manufacturer part number: 909-681-01.
Features
  • Modulator — FSC 5820
  • 2 verified cross-references
  • Primary manufacturer: Repco Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Modulator, cataloged under National Stock Number 5820-01-079-0831, is classified within Federal Supply Class 5820 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Repco Inc. This item has 2 commercial cross-references from 2 manufacturers, 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
NSN5820-01-079-0831
Primary Part Number909-681-01
Item NameModulator
FSC / FSG5820 / 58 — No Item Name Available
ManufacturerRepco Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6140-00-135-0261402820 INTERCHANGEABLE
Battery,storage
National Railway Supply, Llc
3120-00-737-15037371503 INTERCHANGEABLE
Bearing Half Set,sleeve
U S Army Tank Automotive Command Amsta-Im-Mm
3120-01-061-4535402820 INTERCHANGEABLE
Bushing,eccentric
Lucent Technologies Inc Corporate Headquarters
5905-01-093-2032481160-1 INTERCHANGEABLE
Resistor,fixed,film
Raytheon Company Dba Raytheon Co
Cross-Reference Index
Part NumberManufacturer
909-681-01 Repco Inc (USA)
402820 Scientific Radio Systems Inc (USA)
Related Parts
6140-00-135-0261INTERCHANGEABLE
BATTERY,STORAGE
402820
3120-00-737-1503INTERCHANGEABLE
BEARING HALF SET,SLEEVE
7371503
3120-01-061-4535INTERCHANGEABLE
BUSHING,ECCENTRIC
402820
5905-01-093-2032INTERCHANGEABLE
RESISTOR,FIXED,FILM
481160-1

Frequently Asked Questions

What is NSN 5820-01-079-0831?

NSN 5820-01-079-0831 is a Modulator, manufactured by Repco Inc, classified under FSC 5820 (No Item Name Available). Status: active.

What are the part numbers for NSN 5820-01-079-0831?

NSN 5820-01-079-0831 has 2 cross-referenced part numbers: 909-681-01 (Repco Inc), 402820 (Scientific Radio Systems Inc).

What NSN replaces 5820-01-079-0831?

There are 4 known substitutes for 5820-01-079-0831: 6140-00-135-0261, 3120-00-737-1503, 3120-01-061-4535 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 909-681-01?

Key specifications for 909-681-01: End Item Identification: LOW LEVEL WINDSHEAR ALERT SYSTEM. 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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