PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-16034/4Ammeter

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6625-00-264-7990 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-264-7990 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-264-7990. Primary manufacturer part number: MIL-DTL-16034/4.
Features
  • Ammeter — FSC 6625
  • Style Designator: RECTANGULAR FLUSH MTG
  • FSC Application Data: TEST SET ELECTRONIC
  • Test Data Document: 81349-MIL-M-16034 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Mounting Stud Diameter: 0.250 INCHES NOMINAL IN
  • Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE
  • Nuclear Hardness Critical Feature: NONHARDENED
  • Movement Suspension Method: TAUT BAND
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ammeter, cataloged under National Stock Number 6625-00-264-7990, 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 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-264-7990
Primary Part NumberMIL-DTL-16034/4
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
Style DesignatorRECTANGULAR FLUSH MTG
FSC Application DataTEST SET ELECTRONIC
Test Data Document81349-MIL-M-16034 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Mounting Stud Diameter0.250 INCHES NOMINAL IN
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Nuclear Hardness Critical FeatureNONHARDENED
Movement Suspension MethodTAUT BAND
Power SourceEXTERNAL
Circuit Construction TypeNONELECTRONIC
Circuit Attachment Method and Quantity2 THREADED STUD
Measurement Range+0.0 TO 300.0 AMPERES, AC SINGLE INDICATOR SINGLE RANGE
Scale Division Quantity30 SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange10.000 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Width3.375 INCHES NOMINAL IN
Movement TypeMOVING IRON VANE
Features ProvidedMAGNETIC SHIELD AND ZERO ADJUSTER
Center to Center Distance Between Mounting Facilities Parallel to Length3.375 INCHES NOMINAL IN
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Meter Body Diameter Behind Mounting Flange3.980 INCHES MAXIMUM IN
Mounting Stud Length0.500 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity4 THREADED STUD(S)
Circuit Current for Which DesignedAC
Indicator TypeDIAL W/POINTER
Scale Selection MethodSWITCH
Accuracy in Percent-1.5 TO 1.5 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJF
Weight3.1300 lbs
Cube0.0318 cu ft
Verified Substitutes 2
No Item Name Available
Ammeter
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-16034/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILM16034-4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MR49W300ACAAH Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
585F330PC21 Westinghouse Electric Corp (USA)
496-026 Jewell Instruments, Llc Dba Modutec Use CAGE Code 33005 for Cataloging (USA)
Related Parts
6625-00-599-6380SUCCESSOR
NO ITEM NAME AVAILABLE
6625-00-186-8772SUCCESSOR
AMMETER

Frequently Asked Questions

What is NSN 6625-00-264-7990?

NSN 6625-00-264-7990 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 6625-00-264-7990?

NSN 6625-00-264-7990 has 5 cross-referenced part numbers: MIL-DTL-16034/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILM16034-4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MR49W300ACAAH (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 585F330PC21 (Westinghouse Electric Corp), 496-026 (Jewell Instruments, Llc Dba Modutec Use CAGE Code 33005 for Cataloging).

What NSN replaces 6625-00-264-7990?

There are 2 known substitutes for 6625-00-264-7990: 6625-00-599-6380, 6625-00-186-8772. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-16034/4?

Key specifications for MIL-DTL-16034/4: Style Designator: RECTANGULAR FLUSH MTG; Overall Length: 11.000 INCHES MAXIMUM IN; FSC Application Data: TEST SET ELECTRONIC; Test Data Document: 81349-MIL-M-16034 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-264-7990 still in active supply?

NSN 6625-00-264-7990 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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