PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2R5AAmmeter

American Instrument Corp · NSN 6625-00-649-4086 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-649-4086 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-649-4086. Primary manufacturer part number: 2R5A.
Features
  • Ammeter — FSC 6625
  • Color: UNABLE TO DECODE
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Movement Suspension Method: JEWEL PIVOT BASE
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Meter Body Diameter Behind Mounting Flange: 2.021 INCHES NOMINAL IN
  • Style Designator: ROUND FLUSH MTG
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ammeter, cataloged under National Stock Number 6625-00-649-4086, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is American Instrument Corp. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 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
NSN6625-00-649-4086
Primary Part Number2R5A
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerAmerican Instrument Corp
StatusCANCELLED
ColorUNABLE TO DECODE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Movement Suspension MethodJEWEL PIVOT BASE
Movement TypeMOVING COIL, PERMANENT MAGNET
Meter Body Diameter Behind Mounting Flange2.021 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Circuit Current for Which DesignedDC
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Sensitivity Rating75.0 MILLIVOLTS
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Overall Diameter2.695 INCHES NOMINAL IN
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Circuit Attachment Method and Quantity2 SOLDER LUG
Installation DesignPANEL
ColorUNABLE TO DECODE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Movement Suspension MethodJEWEL PIVOT BASE
Movement TypeMOVING COIL, PERMANENT MAGNET
Meter Body Diameter Behind Mounting Flange2.021 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Circuit Current for Which DesignedDC
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Sensitivity Rating75.0 MILLIVOLTS
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Overall Diameter2.695 INCHES NOMINAL IN
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor6625-00-220-9986
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight0.8400 lbs
Cube0.0481 cu ft
Verified Substitutes 12
Ammeter
Meter,audio Level
Ammeter
Ammeter
Ammeter
Ammeter
Ammeter
Ammeter
6625-00-684-812162207-001 SUCCESSOR
Ammeter
Dynalec Corporation
Ammeter
Cross-Reference Index
Part NumberManufacturer
2R5A American Instrument Corp (USA)
7949028 Delco Electronics Corp Delco Systems Opns (USA)
1521-2102005 Solartron Electronics Inc Weston Instruments Div (USA)
MR26W005DCAAR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-10304/5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2R5A Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc (USA)
MILM10304 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
877344 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament (USA)
7949028 General Motors Corp (USA)
MIL-M-10304/5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 6625-00-220-9986 Meter,audio Level
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
6625-00-725-8151SUCCESSOR
AMMETER

Frequently Asked Questions

What is NSN 6625-00-649-4086?

NSN 6625-00-649-4086 is a Ammeter, manufactured by American Instrument Corp, classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-649-4086?

NSN 6625-00-649-4086 has 10 cross-referenced part numbers: 2R5A (American Instrument Corp), 7949028 (Delco Electronics Corp Delco Systems Opns), 1521-2102005 (Solartron Electronics Inc Weston Instruments Div), MR26W005DCAAR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-10304/5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 5 more.

What NSN replaces 6625-00-649-4086?

There are 12 known substitutes for 6625-00-649-4086: 6625-00-069-3031, 6625-00-220-9986, 6625-00-535-4594 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2R5A?

Key specifications for 2R5A: Color: UNABLE TO DECODE; Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE; Movement Suspension Method: JEWEL PIVOT BASE; Movement Type: MOVING COIL, PERMANENT MAGNET. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-649-4086 still in active supply?

NSN 6625-00-649-4086 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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