PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-PRF-10304/22Ammeter

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6625-00-235-7346 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-235-7346 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-235-7346. Primary manufacturer part number: MIL-PRF-10304/22.
Features
  • Ammeter — FSC 6625
  • Installation Design: PANEL
  • Mounting Hole Diameter: 0.156 INCHES NOMINAL IN
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
  • Movement Suspension Method: JEWEL PIVOT BASE
  • Meter Body Diameter Behind Mounting Flange: 2.797 INCHES NOMINAL IN
  • Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-235-7346, 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 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-00-235-7346
Primary Part NumberMIL-PRF-10304/22
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
Installation DesignPANEL
Mounting Hole Diameter0.156 INCHES NOMINAL IN
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Circuit Attachment Method and Quantity2 THREADED STUD
Movement Suspension MethodJEWEL PIVOT BASE
Meter Body Diameter Behind Mounting Flange2.797 INCHES NOMINAL IN
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Measurement Range+0.0 TO 300.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Style DesignatorROUND FLUSH MTG
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Mounting Bolt Circle Diameter3.156 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
ColorUNABLE TO DECODE
Overall Diameter3.500 INCHES NOMINAL IN
Movement TypeMOVING COIL, PERMANENT MAGNET
MaterialPLASTIC
Sensitivity Rating150.0 MILLIVOLTS
Installation DesignPANEL
Mounting Hole Diameter0.156 INCHES NOMINAL IN
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Circuit Attachment Method and Quantity2 THREADED STUD
Movement Suspension MethodJEWEL PIVOT BASE
Meter Body Diameter Behind Mounting Flange2.797 INCHES NOMINAL IN
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Measurement Range+0.0 TO 300.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Style DesignatorROUND FLUSH MTG
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Mounting Bolt Circle Diameter3.156 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6625-00-193-7164 INTERCHANGEABLE
Voltmeter
6625-00-196-8943 INTERCHANGEABLE
Voltmeter
6625-00-228-8923 INTERCHANGEABLE
Voltmeter
6625-00-643-1525 INTERCHANGEABLE
Voltmeter
6625-01-087-8221 INTERCHANGEABLE
Voltmeter
6625-01-303-4890 INTERCHANGEABLE
Voltmeter
Cross-Reference Index
Part NumberManufacturer
MIL-PRF-10304/22 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MR34W300DCMAR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MR34W300DCMA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6625-00-193-7164INTERCHANGEABLE
VOLTMETER
6625-00-196-8943INTERCHANGEABLE
VOLTMETER
6625-00-228-8923INTERCHANGEABLE
VOLTMETER
6625-00-643-1525INTERCHANGEABLE
VOLTMETER
6625-01-087-8221INTERCHANGEABLE
VOLTMETER
6625-01-303-4890INTERCHANGEABLE
VOLTMETER

Frequently Asked Questions

What is NSN 6625-00-235-7346?

NSN 6625-00-235-7346 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 6625-00-235-7346?

NSN 6625-00-235-7346 has 3 cross-referenced part numbers: MIL-PRF-10304/22 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MR34W300DCMAR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MR34W300DCMA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6625-00-235-7346?

There are 6 known substitutes for 6625-00-235-7346: 6625-00-193-7164, 6625-00-196-8943, 6625-00-228-8923 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-PRF-10304/22?

Key specifications for MIL-PRF-10304/22: Installation Design: PANEL; Mounting Hole Diameter: 0.156 INCHES NOMINAL IN; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Circuit Attachment Method and Quantity: 2 THREADED STUD. 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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