PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

741-0-1ADCAmmeter

Custom Metering Company Inc · NSN 6625-00-668-9401 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-668-9401 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-668-9401. Primary manufacturer part number: 741-0-1ADC.
Features
  • Ammeter — FSC 6625
  • Accuracy in Percent: -1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
  • Movement Suspension Method: TAUT BAND
  • Movement Type: MOVING IRON VANE
  • Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE
  • Meter Depth Behind Mounting Flange: 1.630 INCHES NOMINAL IN
  • Material: PLASTIC
  • Pointer Color: BLACK SINGLE INDICATOR SINGLE RANGE
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-668-9401, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Custom Metering Company Inc. 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-668-9401
Primary Part Number741-0-1ADC
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerCustom Metering Company Inc
StatusACTIVE
Accuracy in Percent-1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Movement Suspension MethodTAUT BAND
Movement TypeMOVING IRON VANE
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange1.630 INCHES NOMINAL IN
MaterialPLASTIC
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Style DesignatorRECTANGULAR FLUSH MTG
Measurement Range+0.0 TO 1.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Nuclear Hardness Critical FeatureNONHARDENED
Installation DesignPANEL
Sensitivity Rating50.0 MILLIVOLTS
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Panel for Which DesignedNONMAGNETIC
Features ProvidedZERO ADJUSTER
Mounting Facility Type and Quantity4 CLAMP AND 8 SCREW
Circuit Current for Which DesignedDC
Environmental ProtectionDUST RESISTANT
Power SourceEXTERNAL
Circuit Attachment Method and Quantity2 BINDING POST
Meter Body Height Behind Mounting Flange3.950 INCHES NOMINAL IN
Circuit Construction TypeNONELECTRONIC
Meter Body Width Behind Mounting Flange3.700 INCHES NOMINAL IN
Indicator TypeDIAL W/POINTER
ColorUNABLE TO DECODE
Dielectric Withstanding Voltage in Volts2500.0
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5999-01-071-6708 (405332)
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeXN
Verified Substitutes 9
Ammeter
Voltmeter
Voltmeter
6625-00-668-9179458-0158-000 SUCCESSOR
Ammeter
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6625-00-668-9404741-179861 SUCCESSOR
Ammeter
Custom Metering Company Inc
6625-00-826-4831458-0398-000 SUCCESSOR
Ammeter
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6625-00-845-6994450-0068-00 SUCCESSOR
Ammeter
Alcatel-Lucent Holdings Inc.
5999-01-071-6708405332 SUCCESSOR
Contact,electrical
Telemechanics Inc
Disk Set,magnetic
Cross-Reference Index
Part NumberManufacturer
741-0-1ADC PRIMARY Custom Metering Company Inc (USA)
741 Custom Metering Company Inc (USA)
741 Solartron Electronics Inc Weston Instruments Div (USA)
741-0-1ADC Metermaster Inc Metermod Div (USA)
741 Metermaster Inc Metermod Div (USA)
Related Parts
SUCCESSOR 5999-01-071-6708 Contact,electrical · 405332
6625-00-229-1927SUCCESSOR
AMMETER
6625-00-648-9511SUCCESSOR
VOLTMETER
6625-00-649-4806SUCCESSOR
VOLTMETER
6625-00-668-9179SUCCESSOR
AMMETER
458-0158-000
6625-00-668-9404SUCCESSOR
AMMETER
741-179861
6625-00-826-4831SUCCESSOR
AMMETER
458-0398-000
6625-00-845-6994SUCCESSOR
AMMETER
450-0068-00
7045-01-095-3903SUCCESSOR
DISK SET,MAGNETIC

Frequently Asked Questions

What is NSN 6625-00-668-9401?

NSN 6625-00-668-9401 is a Ammeter, manufactured by Custom Metering Company Inc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-668-9401?

NSN 6625-00-668-9401 has 5 cross-referenced part numbers: 741-0-1ADC (Custom Metering Company Inc), 741 (Custom Metering Company Inc), 741 (Solartron Electronics Inc Weston Instruments Div), 741-0-1ADC (Metermaster Inc Metermod Div), 741 (Metermaster Inc Metermod Div).

What NSN replaces 6625-00-668-9401?

There are 9 known substitutes for 6625-00-668-9401: 6625-00-229-1927, 6625-00-648-9511, 6625-00-649-4806 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 741-0-1ADC?

Key specifications for 741-0-1ADC: Accuracy in Percent: -1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE; Movement Suspension Method: TAUT BAND; Movement Type: MOVING IRON VANE; Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE. 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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