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 6625-00-668-7813 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-668-7813 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-668-7813. Primary manufacturer part number: MILM10304.
Features
  • Ammeter — FSC 6625
  • Movement Suspension Method: JEWEL PIVOT BASE
  • Style Designator: ROUND FLUSH MTG
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Measurement Range: +0.0 TO 30.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
  • Sensitivity Rating: 150.0 MILLIVOLTS
  • Meter Body Diameter Behind Mounting Flange: 2.800 INCHES NOMINAL IN
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ammeter, cataloged under National Stock Number 6625-00-668-7813, 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 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-668-7813
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
StatusCANCELLED
Movement Suspension MethodJEWEL PIVOT BASE
Style DesignatorROUND FLUSH MTG
Movement TypeMOVING COIL, PERMANENT MAGNET
Measurement Range+0.0 TO 30.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Sensitivity Rating150.0 MILLIVOLTS
Meter Body Diameter Behind Mounting Flange2.800 INCHES NOMINAL IN
Circuit Attachment Method and Quantity2 THREADED STUD
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Installation DesignPANEL
Overall Diameter3.500 INCHES NOMINAL IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Circuit Current for Which DesignedDC
ColorUNABLE TO DECODE
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Installation DesignPANEL
Movement Suspension MethodJEWEL PIVOT BASE
Style DesignatorROUND FLUSH MTG
Movement TypeMOVING COIL, PERMANENT MAGNET
Measurement Range+0.0 TO 30.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Sensitivity Rating150.0 MILLIVOLTS
Meter Body Diameter Behind Mounting Flange2.800 INCHES NOMINAL IN
Circuit Attachment Method and Quantity2 THREADED STUD
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Overall Diameter3.500 INCHES NOMINAL IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor6625-00-067-6000 (301-1603039)
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight1.0000 lbs
Cube0.1042 cu ft
Verified Substitutes 12
No Item Name Available
6625-00-067-6000301-1603039 SUCCESSOR
Voltmeter
Jewell Instruments Llc
Voltmeter
6625-00-172-7348711549-04 SUCCESSOR
Ammeter
Honeywell International Inc. Dba Honeywell International
6625-00-405-50201418 SUCCESSOR
Voltmeter
Jewell Instruments Llc
Ammeter
6625-00-900-3744310352 SUCCESSOR
Ammeter
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
Ammeter
6625-00-191-2324SMA569406-1 SUCCESSOR
Meter,arbitrary Scale
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Meter,arbitrary Scale
Cross-Reference Index
Part NumberManufacturer
MILM10304 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
720691-20 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
MR36W030DCMAR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-10304/12 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
9100726 Us Army Aviation and Missile Command (USA)
301-57 Solartron Electronics Inc Weston Instruments Div (USA)
MR36W030DCMA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 6625-00-067-6000 Voltmeter · 301-1603039
6625-00-892-5861SUCCESSOR
NO ITEM NAME AVAILABLE
6625-00-103-2559SUCCESSOR
VOLTMETER
6625-00-172-7348SUCCESSOR
AMMETER
711549-04
6625-00-405-5020SUCCESSOR
VOLTMETER
1418
6625-00-538-9769SUCCESSOR
AMMETER
6625-00-900-3744SUCCESSOR
AMMETER
310352
6625-00-005-1177SUCCESSOR
AMMETER
6625-00-191-2324SUCCESSOR
METER,ARBITRARY SCALE
SMA569406-1
6625-00-191-2337SUCCESSOR
METER,ARBITRARY SCALE
6625-00-191-2340SUCCESSOR
METER,ARBITRARY SCALE
SMA569407-3
6625-00-191-2342SUCCESSOR
METER,ARBITRARY SCALE
SMA569477-1

Frequently Asked Questions

What is NSN 6625-00-668-7813?

NSN 6625-00-668-7813 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: cancelled.

What are the part numbers for NSN 6625-00-668-7813?

NSN 6625-00-668-7813 has 7 cross-referenced part numbers: MILM10304 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 720691-20 (Lockheed Martin Corporation Div Rms - Mitchel Field), MR36W030DCMAR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-10304/12 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 9100726 (Us Army Aviation and Missile Command) and 2 more.

What NSN replaces 6625-00-668-7813?

There are 12 known substitutes for 6625-00-668-7813: 6625-00-892-5861, 6625-00-067-6000, 6625-00-103-2559 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILM10304?

Key specifications for MILM10304: Movement Suspension Method: JEWEL PIVOT BASE; Style Designator: ROUND FLUSH MTG; Movement Type: MOVING COIL, PERMANENT MAGNET; Measurement Range: +0.0 TO 30.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-668-7813 still in active supply?

NSN 6625-00-668-7813 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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