PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

82-178Meter,audio Level

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple · NSN 6625-00-233-4680 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-233-4680 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-233-4680. Primary manufacturer part number: 82-178.
Features
  • Meter,audio Level — FSC 6625
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Circuit Current for Which Designed: DC
  • Meter Depth Behind Mounting Flange: 1.600 INCHES NOMINAL IN
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
Applications
  • Applications requiring Plastic construction
General Description

The Meter,audio Level, cataloged under National Stock Number 6625-00-233-4680, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple. Government technical data includes 30 verified specifications, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-00-233-4680
Primary Part Number82-178
Item NameMeter,audio Level
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
StatusACTIVE
Movement TypeMOVING COIL, PERMANENT MAGNET
Circuit Current for Which DesignedDC
Meter Depth Behind Mounting Flange1.600 INCHES NOMINAL IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 THREADED STUD
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
ColorUNABLE TO DECODE
Mounting Bolt Circle Diameter1.218 INCHES NOMINAL IN
MaterialPLASTIC
Style DesignatorROUND FLUSH MTG
Installation DesignPANEL
Overall Diameter2.695 INCHES NOMINAL IN
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Meter Body Diameter Behind Mounting Flange2.210 INCHES NOMINAL IN
Movement TypeMOVING COIL, PERMANENT MAGNET
Circuit Current for Which DesignedDC
Meter Depth Behind Mounting Flange1.600 INCHES NOMINAL IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 THREADED STUD
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
ColorUNABLE TO DECODE
Mounting Bolt Circle Diameter1.218 INCHES NOMINAL IN
MaterialPLASTIC
Style DesignatorROUND FLUSH MTG
Installation DesignPANEL
Overall Diameter2.695 INCHES NOMINAL IN
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-017-8867 (125)
HAZMATNo
Verified Substitutes 12
6625-00-017-8867125 SUCCESSOR
Generator,signal
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
5999-00-069-1793101-15 SUCCESSOR
Heat Sink,electrical-Electronic
General Dynamics Mission Systems, Inc. Dba Gdms
6625-00-255-012004194 SUCCESSOR
Ammeter
Simpson Electric Company, Inc.
Voltmeter
6625-00-736-8586289Z14D2 SUCCESSOR
Voltmeter
Morris Material Handling, Inc.
6625-00-767-4255125-01500 SUCCESSOR
Ammeter
Simpson Electric Company, Inc.
Ammeter
Ammeter
3020-00-467-6933 INTERCHANGEABLE
Pinion
6625-01-068-1212 INTERCHANGEABLE
Generator,signal
Cross-Reference Index
Part NumberManufacturer
125 Simpson Electric Company, Inc. (USA)
82-178 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA)
Related Parts
SUCCESSOR 6625-00-017-8867 Generator,signal · 125
5999-00-069-1793SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
101-15
6625-00-255-0120SUCCESSOR
AMMETER
04194
6625-00-643-1755SUCCESSOR
VOLTMETER
6625-00-736-8586SUCCESSOR
VOLTMETER
289Z14D2
6625-00-767-4255SUCCESSOR
AMMETER
125-01500
6625-00-849-9456SUCCESSOR
AMMETER
6625-01-180-0391SUCCESSOR
AMMETER
3020-00-467-6933INTERCHANGEABLE
PINION
6625-01-068-1212INTERCHANGEABLE
GENERATOR,SIGNAL
5330-01-099-6552INTERCHANGEABLE
GASKET
03341900
5325-01-460-5640INTERCHANGEABLE
RING,RETAINING
82178

Frequently Asked Questions

What is NSN 6625-00-233-4680?

NSN 6625-00-233-4680 is a Meter,audio Level, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-233-4680?

NSN 6625-00-233-4680 has 2 cross-referenced part numbers: 125 (Simpson Electric Company, Inc.), 82-178 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple).

What NSN replaces 6625-00-233-4680?

There are 12 known substitutes for 6625-00-233-4680: 6625-00-017-8867, 5999-00-069-1793, 6625-00-255-0120 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 82-178?

Key specifications for 82-178: Movement Type: MOVING COIL, PERMANENT MAGNET; Circuit Current for Which Designed: DC; Meter Depth Behind Mounting Flange: 1.600 INCHES NOMINAL IN; Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE. 30 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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