PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILM10304-5Meter,audio Level

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6625-00-220-9986 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-220-9986 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-220-9986. Primary manufacturer part number: MILM10304-5.
Features
  • Meter,audio Level — FSC 6625
  • Mounting Bolt Circle Diameter: 2.440 INCHES NOMINAL IN
  • Circuit Current for Which Designed: DC
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
  • Measurement Range: -10.0 TO 6.0 DECIBELS SINGLE INDICATOR SINGLE RANGE
  • Material: PLASTIC
  • Overall Diameter: 2.695 INCHES NOMINAL IN
  • 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 6625-00-220-9986, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-220-9986
Primary Part NumberMILM10304-5
Item NameMeter,audio Level
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
Circuit Attachment Method and Quantity2 THREADED STUD
Measurement Range-10.0 TO 6.0 DECIBELS SINGLE INDICATOR SINGLE RANGE
MaterialPLASTIC
Overall Diameter2.695 INCHES NOMINAL IN
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Test Data Document81349-MIL-10304 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Style DesignatorROUND FLUSH MTG
Movement TypeMOVING COIL, PERMANENT MAGNET
Accuracy in Percent-5.0 TO 5.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange1.500 INCHES NOMINAL IN
Meter Body Diameter Behind Mounting Flange2.210 INCHES NOMINAL IN
Installation DesignPANEL
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
Circuit Attachment Method and Quantity2 THREADED STUD
Measurement Range-10.0 TO 6.0 DECIBELS SINGLE INDICATOR SINGLE RANGE
MaterialPLASTIC
Overall Diameter2.695 INCHES NOMINAL IN
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Test Data Document81349-MIL-10304 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 12
Ammeter
Ammeter
Ammeter
Ammeter
Ammeter
Ammeter
Ammeter
Ammeter
Ammeter
Ammeter
Cross-Reference Index
Part NumberManufacturer
MILM10304-5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MR25W123SPEC Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6625-00-057-3629SUCCESSOR
AMMETER
6625-00-069-3298SUCCESSOR
AMMETER
6625-00-080-2096SUCCESSOR
AMMETER
6625-00-113-9995SUCCESSOR
AMMETER
6625-00-115-9343SUCCESSOR
AMMETER
6625-00-169-6524SUCCESSOR
AMMETER
6625-00-186-8261SUCCESSOR
AMMETER
6625-00-538-9033SUCCESSOR
AMMETER
6625-00-538-9039SUCCESSOR
AMMETER
6625-00-539-9639SUCCESSOR
AMMETER
6625-00-539-9640SUCCESSOR
AMMETER
6625-00-542-0539SUCCESSOR
AMMETER

Frequently Asked Questions

What is NSN 6625-00-220-9986?

NSN 6625-00-220-9986 is a Meter,audio Level, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-220-9986?

NSN 6625-00-220-9986 has 2 cross-referenced part numbers: MILM10304-5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MR25W123SPEC (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6625-00-220-9986?

There are 12 known substitutes for 6625-00-220-9986: 6625-00-057-3629, 6625-00-069-3298, 6625-00-080-2096 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILM10304-5?

Key specifications for MILM10304-5: Mounting Bolt Circle Diameter: 2.440 INCHES NOMINAL IN; Circuit Current for Which Designed: DC; Special Features: REF LEVEL 6MW AT 600 OHMS IMPEDANCE; Circuit Attachment Method and Quantity: 2 THREADED STUD. 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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