PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1541Meter,audio Level

Lockheed Martin Corporation Div Rms · NSN 6625-00-993-6232 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-993-6232 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-993-6232. Primary manufacturer part number: 1541.
Features
  • Meter,audio Level — FSC 6625
  • Color: UNABLE TO DECODE
  • Power Source: EXTERNAL
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Meter Body Diameter Behind Mounting Flange: 3.760 INCHES MAXIMUM IN
  • Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
  • Features Provided: MAGNETIC SHIELD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Meter,audio Level, cataloged under National Stock Number 6625-00-993-6232, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-993-6232
Primary Part Number1541
Item NameMeter,audio Level
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
ColorUNABLE TO DECODE
Power SourceEXTERNAL
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING COIL, PERMANENT MAGNET
Meter Body Diameter Behind Mounting Flange3.760 INCHES MAXIMUM IN
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Features ProvidedMAGNETIC SHIELD
Style DesignatorROUND FLUSH MTG
Mounting Stud Diameter0.150 INCHES NOMINAL IN
Nuclear Hardness Critical FeatureNONHARDENED
Circuit Attachment Method and Quantity2 SOLDERLESS LUG
Measurement Range-20.0 TO 0.0 DECIBELS SINGLE INDICATOR SINGLE RANGE
Movement Suspension MethodJEWEL PIVOT BASE
Special MarkingsDB/MICROBAR
FSC Application DataTEST SET,ELECT. EQUIP.
Circuit Current for Which DesignedDC
Furnished Items and QuantityNUTS 6,WASHERS 6
Mounting Bolt Circle Diameter4.125 INCHES NOMINAL IN
Mounting Arrangement StyleSIX HOLE/STUD BOLT CIRCLE
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Mounting Stud Length0.500 INCHES NOMINAL IN
Overall Diameter4.600 INCHES MAXIMUM IN
Meter Depth Behind Mounting Flange1.510 INCHES MAXIMUM IN
Dielectric Withstanding Voltage in Volts3000.0
Indicator TypeDIAL W/POINTER
Power SourceEXTERNAL
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING COIL, PERMANENT MAGNET
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 8
6625-00-118-6740128C772H01 SUCCESSOR
Meter,special Scale
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Meter,arbitrary Scale
6625-00-555-2954900309-2 SUCCESSOR
Meter,arbitrary Scale
Raytheon Company Dba Raytheon
Ohmmeter
Meter,arbitrary Scale
Meter,arbitrary Scale
Ammeter
6625-00-845-69371900 SUCCESSOR
Meter,special Scale
Eaton Electrical Inc. Dba Cuttler Hmmer Cmrcl Cntrls Div Div Vehicle Controls Business Unit
Cross-Reference Index
Part NumberManufacturer
77C707856P001 Lockheed Martin Corporation Div Rms (USA)
77C707856PT1REVA Lockheed Martin Corporation Div Rms (USA)
4652-004 Jewell Instruments Llc (USA)
1541 PRIMARY Lockheed Martin Corporation Div Rms (USA)
77C707856PT1 Lockheed Martin Corporation Div Rms (USA)
Related Parts
6625-00-118-6740SUCCESSOR
METER,SPECIAL SCALE
128C772H01
6625-00-519-0063SUCCESSOR
METER,ARBITRARY SCALE
6625-00-555-2954SUCCESSOR
METER,ARBITRARY SCALE
900309-2
6625-00-624-8106SUCCESSOR
OHMMETER
6625-00-761-1168SUCCESSOR
METER,ARBITRARY SCALE
6625-00-762-6480SUCCESSOR
METER,ARBITRARY SCALE
6625-00-816-5937SUCCESSOR
AMMETER
6625-00-845-6937SUCCESSOR
METER,SPECIAL SCALE
1900

Frequently Asked Questions

What is NSN 6625-00-993-6232?

NSN 6625-00-993-6232 is a Meter,audio Level, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-993-6232?

NSN 6625-00-993-6232 has 5 cross-referenced part numbers: 77C707856P001 (Lockheed Martin Corporation Div Rms), 77C707856PT1REVA (Lockheed Martin Corporation Div Rms), 4652-004 (Jewell Instruments Llc), 1541 (Lockheed Martin Corporation Div Rms), 77C707856PT1 (Lockheed Martin Corporation Div Rms).

What NSN replaces 6625-00-993-6232?

There are 8 known substitutes for 6625-00-993-6232: 6625-00-118-6740, 6625-00-519-0063, 6625-00-555-2954 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1541?

Key specifications for 1541: Color: UNABLE TO DECODE; Power Source: EXTERNAL; Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE; Movement Type: MOVING COIL, PERMANENT MAGNET. 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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