PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILM10304Ammeter

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6625-00-643-1432 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-643-1432 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-643-1432. Primary manufacturer part number: MILM10304.
Features
  • Ammeter — FSC 6625
  • Scale Selection Method: TERMINAL
  • Mounting Stud Length: 0.500 INCHES NOMINAL IN
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Surface Treatment: ENAMEL SEMIGLOSS
  • Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE
  • Style Designator: ROUND FLUSH MTG
  • Test Data Document: 81349-MIL-M-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.).
Applications
  • Applications requiring Steel construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-643-1432, 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 28 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.

Technical Specifications
ParameterValue
NSN6625-00-643-1432
Primary Part NumberMILM10304
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Scale Selection MethodTERMINAL
Mounting Stud Length0.500 INCHES NOMINAL IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Surface TreatmentENAMEL SEMIGLOSS
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Style DesignatorROUND FLUSH MTG
Test Data Document81349-MIL-M-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.).
Environmental ProtectionCOLD RESISTANT AND HEAT RESISTANT AND SHOCK RESISTANT AND SUBMERSIBLE AND VIBRATION RESISTANT AND WATERTIGHT
Overall Diameter3.510 INCHES MAXIMUM IN
MaterialSTEEL
ColorUNABLE TO DECODE
Panel for Which DesignedMAGNETIC OR NONMAGNETIC
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Furnished Items and QuantityMTG HDW 3; TERM. HDW 2
Installation DesignPANEL
Sensitivity Rating150.0 MILLIVOLTS
Indicator TypeDIAL W/POINTER
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Circuit Construction TypeNONELECTRONIC
Movement Suspension MethodJEWEL PIVOT BASE
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Movement TypeMOVING COIL, PERMANENT MAGNET
Circuit Current for Which DesignedDC
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Measurement Range+0.0 TO 500.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Power SourceEXTERNAL
Features ProvidedLUMINOUS SCALE MARKING AND MAGNETIC SHIELD AND ZERO ADJUSTER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
Ammeter
Ammeter
Ammeter
Ammeter
Ammeter
Ammeter
Ammeter
6625-00-684-812162207-001 SUCCESSOR
Ammeter
Dynalec Corporation
Ammeter
Ammeter
Cross-Reference Index
Part NumberManufacturer
MILM10304 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MR36W500DCMA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6625-00-069-3031SUCCESSOR
AMMETER
6625-00-535-4594SUCCESSOR
AMMETER
6625-00-555-3092SUCCESSOR
AMMETER
6625-00-643-3502SUCCESSOR
AMMETER
6625-00-648-7562SUCCESSOR
AMMETER
6625-00-668-7813SUCCESSOR
AMMETER
6625-00-683-9592SUCCESSOR
AMMETER
6625-00-684-8121SUCCESSOR
AMMETER
62207-001
6625-00-720-3253SUCCESSOR
AMMETER
6625-00-720-3254SUCCESSOR
AMMETER
6625-00-730-7278SUCCESSOR
VOLTMETER
6625-00-818-9090SUCCESSOR
VOLTMETER

Frequently Asked Questions

What is NSN 6625-00-643-1432?

NSN 6625-00-643-1432 is a Ammeter, 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 6625-00-643-1432?

NSN 6625-00-643-1432 has 2 cross-referenced part numbers: MILM10304 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MR36W500DCMA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6625-00-643-1432?

There are 12 known substitutes for 6625-00-643-1432: 6625-00-069-3031, 6625-00-535-4594, 6625-00-555-3092 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILM10304?

Key specifications for MILM10304: Scale Selection Method: TERMINAL; Mounting Stud Length: 0.500 INCHES NOMINAL IN; Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE; Surface Treatment: ENAMEL SEMIGLOSS. 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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