PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILM6Ammeter

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6625-00-144-0056 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-144-0056 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-144-0056. Primary manufacturer part number: MILM6.
Features
  • Ammeter — FSC 6625
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
  • Meter Body Diameter Behind Mounting Flange: 2.800 INCHES NOMINAL IN
  • Circuit Current for Which Designed: AC
  • Measurement Range: +0.0 TO 10.0 AMPERES, AC SINGLE INDICATOR SINGLE RANGE
  • Color: UNABLE TO DECODE
  • Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ammeter, cataloged under National Stock Number 6625-00-144-0056, 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 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-144-0056
Primary Part NumberMILM6
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
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Meter Body Diameter Behind Mounting Flange2.800 INCHES NOMINAL IN
Circuit Current for Which DesignedAC
Measurement Range+0.0 TO 10.0 AMPERES, AC SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Movement Suspension MethodJEWEL PIVOT BASE
Sensitivity Rating250.0 MILLIVOLTS
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Circuit Attachment Method and Quantity2 THREADED STUD
Style DesignatorROUND FLUSH MTG
Movement TypeMOVING IRON VANE
Overall Diameter3.500 INCHES NOMINAL IN
Installation DesignPANEL
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Meter Body Diameter Behind Mounting Flange2.800 INCHES NOMINAL IN
Circuit Current for Which DesignedAC
Measurement Range+0.0 TO 10.0 AMPERES, AC SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Movement Suspension MethodJEWEL PIVOT BASE
Sensitivity Rating250.0 MILLIVOLTS
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Circuit Attachment Method and Quantity2 THREADED STUD
Style DesignatorROUND FLUSH MTG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeXN
Verified Substitutes 7
Ammeter
Voltmeter
Ammeter
Ammeter
Ammeter
Ammeter
Voltmeter
Cross-Reference Index
Part NumberManufacturer
MILM6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MR35W010RLAA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6625-00-668-9246SUCCESSOR
AMMETER
6625-00-838-4356SUCCESSOR
VOLTMETER
6625-01-023-2776SUCCESSOR
AMMETER
6625-00-231-0735SUCCESSOR
AMMETER
6625-00-241-4266SUCCESSOR
AMMETER
6625-00-299-6259SUCCESSOR
AMMETER
6625-00-836-7431SUCCESSOR
VOLTMETER

Frequently Asked Questions

What is NSN 6625-00-144-0056?

NSN 6625-00-144-0056 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 6625-00-144-0056?

NSN 6625-00-144-0056 has 2 cross-referenced part numbers: MILM6 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MR35W010RLAA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6625-00-144-0056?

There are 7 known substitutes for 6625-00-144-0056: 6625-00-668-9246, 6625-00-838-4356, 6625-01-023-2776 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILM6?

Key specifications for MILM6: Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE; Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE; Meter Body Diameter Behind Mounting Flange: 2.800 INCHES NOMINAL IN; Circuit Current for Which Designed: AC. 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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