PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

04194Ammeter

Simpson Electric Company, Inc. · NSN 6625-00-255-0120 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-255-0120 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-255-0120. Primary manufacturer part number: 04194.
Features
  • Ammeter — FSC 6625
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
  • Circuit Construction Type: NONELECTRONIC
  • Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE
  • Features Provided: MAGNETIC SHIELD AND ZERO ADJUSTER
  • Material: STEEL
  • Color: UNABLE TO DECODE
  • FSC Application Data: TEST SET,ELECT. EQUIP.
Applications
  • Applications requiring Steel construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-255-0120, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Simpson Electric Company, Inc.. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 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
NSN6625-00-255-0120
Primary Part Number04194
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSimpson Electric Company, Inc.
StatusCANCELLED
Circuit Attachment Method and Quantity2 THREADED STUD
Circuit Construction TypeNONELECTRONIC
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Features ProvidedMAGNETIC SHIELD AND ZERO ADJUSTER
MaterialSTEEL
ColorUNABLE TO DECODE
FSC Application DataTEST SET,ELECT. EQUIP.
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Movement Suspension MethodJEWEL PIVOT BASE
Indicator TypeDIAL W/POINTER
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Meter Body Diameter Behind Mounting Flange2.180 INCHES NOMINAL IN
Mounting Hole Diameter0.128 INCHES NOMINAL IN
Panel for Which DesignedMAGNETIC OR NONMAGNETIC
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Overall Diameter2.690 INCHES NOMINAL IN
Furnished Items and QuantityNUT 2
Power SourceEXTERNAL
Circuit Current for Which DesignedDC
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Installation DesignPANEL
Measurement Range-50.0 TO 50.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING COIL, PERMANENT MAGNET
Environmental ProtectionSHOCK RESISTANT AND VIBRATION RESISTANT
Style DesignatorROUND FLUSH MTG
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJZ
Weight0.0100 lbs
Cube0.0072 cu ft
Verified Substitutes 12
No Item Name Available
5999-00-069-1793101-15 SUCCESSOR
Heat Sink,electrical-Electronic
General Dynamics Mission Systems, Inc. Dba Gdms
6625-00-233-468082-178 SUCCESSOR
Meter,audio Level
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
Generator,signal
6625-00-017-8867125 INTERCHANGEABLE
Generator,signal
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
5945-00-458-6854 INTERCHANGEABLE
Relay,electromagnetic
6625-00-643-1755 INTERCHANGEABLE
Voltmeter
6625-00-736-8586289Z14D2 INTERCHANGEABLE
Voltmeter
Morris Material Handling, Inc.
6625-00-767-4255125-01500 INTERCHANGEABLE
Ammeter
Simpson Electric Company, Inc.
6625-00-849-9456 INTERCHANGEABLE
Ammeter
Cross-Reference Index
Part NumberManufacturer
04194 PRIMARY Simpson Electric Company, Inc. (USA)
125-4194 Simpson Electric Company, Inc. (USA)
152-1450 Triplett (bluffton) Corporation Dba Lfe Instruments (USA)
125 Simpson Electric Company, Inc. (USA)
125-04194 Simpson Electric Company, Inc. (USA)
Related Parts
6625-00-004-0333SUCCESSOR
NO ITEM NAME AVAILABLE
5999-00-069-1793SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
101-15
6625-00-233-4680SUCCESSOR
METER,AUDIO LEVEL
82-178
6625-01-068-1212SUCCESSOR
GENERATOR,SIGNAL
6625-00-017-8867INTERCHANGEABLE
GENERATOR,SIGNAL
125
5945-00-458-6854INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
6625-00-643-1755INTERCHANGEABLE
VOLTMETER
6625-00-736-8586INTERCHANGEABLE
VOLTMETER
289Z14D2
6625-00-767-4255INTERCHANGEABLE
AMMETER
125-01500
6625-00-849-9456INTERCHANGEABLE
AMMETER
4010-01-085-0921INTERCHANGEABLE
CABLE
1254194
5133-01-123-1123INTERCHANGEABLE
DRILL,TWIST

Frequently Asked Questions

What is NSN 6625-00-255-0120?

NSN 6625-00-255-0120 is a Ammeter, manufactured by Simpson Electric Company, Inc., classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-255-0120?

NSN 6625-00-255-0120 has 5 cross-referenced part numbers: 04194 (Simpson Electric Company, Inc.), 125-4194 (Simpson Electric Company, Inc.), 152-1450 (Triplett (bluffton) Corporation Dba Lfe Instruments), 125 (Simpson Electric Company, Inc.), 125-04194 (Simpson Electric Company, Inc.).

What NSN replaces 6625-00-255-0120?

There are 12 known substitutes for 6625-00-255-0120: 6625-00-004-0333, 5999-00-069-1793, 6625-00-233-4680 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 04194?

Key specifications for 04194: Circuit Attachment Method and Quantity: 2 THREADED STUD; Circuit Construction Type: NONELECTRONIC; Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE; Features Provided: MAGNETIC SHIELD AND ZERO ADJUSTER. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-255-0120 still in active supply?

NSN 6625-00-255-0120 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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