PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MR24W100DCMARAmmeter

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6625-00-186-8297 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-186-8297 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-186-8297. Primary manufacturer part number: MR24W100DCMAR.
Features
  • Ammeter — FSC 6625
  • Measurement Range: +0.0 TO 100.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE
  • Mounting Hole Diameter: 0.125 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ammeter, cataloged under National Stock Number 6625-00-186-8297, 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 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-186-8297
Primary Part NumberMR24W100DCMAR
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
Measurement Range+0.0 TO 100.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 THREADED STUD
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING COIL, PERMANENT MAGNET
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Overall Diameter2.695 INCHES NOMINAL IN
Installation DesignPANEL
Meter Depth Behind Mounting Flange2.210 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
ColorUNABLE TO DECODE
Accuracy in Percent-2.5 TO 2.5 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Measurement Range+0.0 TO 100.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 THREADED STUD
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING COIL, PERMANENT MAGNET
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Overall Diameter2.695 INCHES NOMINAL IN
Installation DesignPANEL
Meter Depth Behind Mounting Flange2.210 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
ColorUNABLE TO DECODE
Accuracy in Percent-2.5 TO 2.5 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeXN
Verified Substitutes 4
6625-00-032-4872 INTERCHANGEABLE
Ammeter
6625-00-231-0735 INTERCHANGEABLE
Ammeter
6625-01-209-6892 INTERCHANGEABLE
Ammeter
6625-01-216-2441 INTERCHANGEABLE
Voltmeter
Cross-Reference Index
Part NumberManufacturer
MR24W100DCMAR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MR24W100DCMA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-10304/37 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6625-00-032-4872INTERCHANGEABLE
AMMETER
6625-00-231-0735INTERCHANGEABLE
AMMETER
6625-01-209-6892INTERCHANGEABLE
AMMETER
6625-01-216-2441INTERCHANGEABLE
VOLTMETER

Frequently Asked Questions

What is NSN 6625-00-186-8297?

NSN 6625-00-186-8297 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 6625-00-186-8297?

NSN 6625-00-186-8297 has 3 cross-referenced part numbers: MR24W100DCMAR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MR24W100DCMA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-10304/37 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6625-00-186-8297?

There are 4 known substitutes for 6625-00-186-8297: 6625-00-032-4872, 6625-00-231-0735, 6625-01-209-6892 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MR24W100DCMAR?

Key specifications for MR24W100DCMAR: Measurement Range: +0.0 TO 100.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE; Circuit Attachment Method and Quantity: 2 THREADED STUD; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE. 28 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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