PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

166G659-15Indicator,electrical Tachometer

Northrop Grumman Systems Corporation · NSN 6680-00-471-9623 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-471-9623 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-471-9623. Primary manufacturer part number: 166G659-15.
Features
  • Indicator,electrical Tachometer — FSC 6680
  • 2 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 Indicator,electrical Tachometer, cataloged under National Stock Number 6680-00-471-9623, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corporation. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameIndicator,electrical Tachometer
FSC / FSG6680 — No Item Name Available (FSG 66)
ManufacturersNorthrop Grumman Systems Corporation (CAGE 78022); Metermaster Inc (CAGE 25497)
Technical Specifications
ParameterValue
NSN6680-00-471-9623
Primary Part Number166G659-15
Item NameIndicator,electrical Tachometer
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-00-107-1593 INTERCHANGEABLE
Nut,plain,hexagon
5840-00-152-5006701011 INTERCHANGEABLE
Gear and Hub Assy
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-157-0482909601 INTERCHANGEABLE
Ring,bearing,outer
General Motors Llc Dba General Motors Llc
5998-00-162-2109 INTERCHANGEABLE
Circuit Card Assembly
5935-00-491-6302SMA595805-3 INTERCHANGEABLE
Adapter,connector
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2920-00-624-0284294628 INTERCHANGEABLE
Parts Kit,ignition Magneto
Briggs and Stratton Corp
6635-01-610-1744701011 INTERCHANGEABLE
Nrp,x-Ray Apparatus,rad
Leidos Inc
Cross-Reference Index
Part NumberManufacturer
166G659-15 Northrop Grumman Systems Corporation (USA)
7010-11 Metermaster Inc (USA)
Related Parts
5310-00-107-1593INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5840-00-152-5006INTERCHANGEABLE
GEAR AND HUB ASSY
701011
3110-00-157-0482INTERCHANGEABLE
RING,BEARING,OUTER
909601
5998-00-162-2109INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5935-00-491-6302INTERCHANGEABLE
ADAPTER,CONNECTOR
SMA595805-3
2920-00-624-0284INTERCHANGEABLE
PARTS KIT,IGNITION MAGNETO
294628
6635-01-610-1744INTERCHANGEABLE
NRP,X-RAY APPARATUS,RAD
701011

Frequently Asked Questions

What is NSN 6680-00-471-9623?

NSN 6680-00-471-9623 is a Indicator,electrical Tachometer, manufactured by Northrop Grumman Systems Corporation, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-471-9623?

NSN 6680-00-471-9623 has 2 cross-referenced part numbers: 166G659-15 (Northrop Grumman Systems Corporation), 7010-11 (Metermaster Inc).

What NSN replaces 6680-00-471-9623?

There are 7 known substitutes for 6680-00-471-9623: 5310-00-107-1593, 5840-00-152-5006, 3110-00-157-0482 and 4 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com