PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

120194Ammeter

Solartron Electronics Inc Weston Instruments Div · NSN 6625-00-557-0257 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-557-0257 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-557-0257. Primary manufacturer part number: 120194.
Features
  • Ammeter — FSC 6625
  • Meter Depth Behind Mounting Flange: 1.020 INCHES NOMINAL IN
  • Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
  • Style Designator: ROUND FLUSH MTG
  • Circuit Attachment Method and Quantity: 2 BINDING POST
  • Meter Body Diameter Behind Mounting Flange: 2.060 INCHES NOMINAL IN
  • Measurement Range: -10.0 TO 10.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ammeter, cataloged under National Stock Number 6625-00-557-0257, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Solartron Electronics Inc Weston Instruments Div. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-557-0257
Primary Part Number120194
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSolartron Electronics Inc Weston Instruments Div
StatusACTIVE
Meter Depth Behind Mounting Flange1.020 INCHES NOMINAL IN
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Style DesignatorROUND FLUSH MTG
Circuit Attachment Method and Quantity2 BINDING POST
Meter Body Diameter Behind Mounting Flange2.060 INCHES NOMINAL IN
Measurement Range-10.0 TO 10.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Overall Diameter2.550 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
Mounting Facility Type and Quantity3 FLANGE
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Mounting Bolt Circle Diameter2.320 INCHES NOMINAL IN
Installation DesignPANEL
ColorUNABLE TO DECODE
Features ProvidedSELF-ILLUMINATION FACILITY
Meter Depth Behind Mounting Flange1.020 INCHES NOMINAL IN
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Style DesignatorROUND FLUSH MTG
Circuit Attachment Method and Quantity2 BINDING POST
Meter Body Diameter Behind Mounting Flange2.060 INCHES NOMINAL IN
Measurement Range-10.0 TO 10.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Overall Diameter2.550 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
Mounting Facility Type and Quantity3 FLANGE
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeLN
Verified Substitutes 2
5136-00-228-1008 INTERCHANGEABLE
Tap,thread Cutting
6145-00-817-3597 INTERCHANGEABLE
Wire,electrical
Cross-Reference Index
Part NumberManufacturer
120194 Solartron Electronics Inc Weston Instruments Div (USA)
Related Parts
5136-00-228-1008INTERCHANGEABLE
TAP,THREAD CUTTING
6145-00-817-3597INTERCHANGEABLE
WIRE,ELECTRICAL

Frequently Asked Questions

What is NSN 6625-00-557-0257?

NSN 6625-00-557-0257 is a Ammeter, manufactured by Solartron Electronics Inc Weston Instruments Div, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-557-0257?

NSN 6625-00-557-0257 has 1 cross-referenced part number: 120194 (Solartron Electronics Inc Weston Instruments Div).

What NSN replaces 6625-00-557-0257?

There are 2 known substitutes for 6625-00-557-0257: 5136-00-228-1008, 6145-00-817-3597. Verify interchangeability with system specifications before substitution.

What are the specifications of 120194?

Key specifications for 120194: Meter Depth Behind Mounting Flange: 1.020 INCHES NOMINAL IN; Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE; Overall Length: 1.145 INCHES NOMINAL IN; Style Designator: ROUND FLUSH MTG. 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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