PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KS8157Ammeter

Lucent Technologies Inc Corporate Headquarters · NSN 6625-00-635-4180 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-635-4180 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-635-4180. Primary manufacturer part number: KS8157.
Features
  • Ammeter — FSC 6625
  • Dial Scale Marking Color: WHITE SINGLE INDICATOR SINGLE RANGE
  • Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE
  • Overall Diameter: 2.695 INCHES NOMINAL IN
  • Features Provided: ZERO ADJUSTER AND SELF-ILLUMINATION FACILITY
  • Measurement Range: +0.0 TO 0.5 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
  • Power Source: EXTERNAL
  • Movement Suspension Method: JEWEL PIVOT BASE
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-635-4180, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Lucent Technologies Inc Corporate Headquarters. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-635-4180
Primary Part NumberKS8157
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerLucent Technologies Inc Corporate Headquarters
StatusACTIVE
Dial Scale Marking ColorWHITE SINGLE INDICATOR SINGLE RANGE
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Overall Diameter2.695 INCHES NOMINAL IN
Features ProvidedZERO ADJUSTER AND SELF-ILLUMINATION FACILITY
Measurement Range+0.0 TO 0.5 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Power SourceEXTERNAL
Movement Suspension MethodJEWEL PIVOT BASE
Sensitivity Rating187.0 MILLIVOLTS
Scale Division Quantity150 SINGLE INDICATOR SINGLE RANGE
Nuclear Hardness Critical FeatureNONHARDENED
ColorUNABLE TO DECODE
Meter Depth Behind Mounting Flange1.680 INCHES NOMINAL IN
Panel for Which DesignedNONMAGNETIC
Indicator TypeDIAL W/POINTER
Style DesignatorROUND FLUSH MTG
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Meter Body Diameter Behind Mounting Flange2.210 INCHES NOMINAL IN
Circuit Construction TypeNONELECTRONIC
Circuit Attachment Method and Quantity2 THREADED STUD
Installation DesignPANEL
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Pointer ColorWHITE SINGLE INDICATOR SINGLE RANGE
Circuit Current for Which DesignedDC
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING COIL, PERMANENT MAGNET
MaterialPLASTIC
Dial Scale Marking ColorWHITE SINGLE INDICATOR SINGLE RANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-504-2980
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeX
Weight0.4200 lbs
Cube0.0480 cu ft
Verified Substitutes 12
Meter,arbitrary Scale
6625-01-462-6376506 SUCCESSOR
Multimeter
Hc Protek
6625-01-540-3811506 SUCCESSOR
Case,electrical-Electronic Test
Platt Luggage, Inc.
6625-00-186-8296 INTERCHANGEABLE
Ammeter
5935-00-258-8570715892PC9 INTERCHANGEABLE
Connector,receptacle,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6625-00-440-6548 INTERCHANGEABLE
Ammeter
6625-00-538-8996 INTERCHANGEABLE
Ammeter
6625-00-571-4459 INTERCHANGEABLE
Multimeter
6625-00-602-3951 INTERCHANGEABLE
Ammeter
6625-00-643-0577 INTERCHANGEABLE
Voltmeter
Cross-Reference Index
Part NumberManufacturer
KS1054 At and T Corp (USA)
KS1054 American Telephone and Telegraph Co (USA)
KS8157 Lucent Technologies Inc Dba Federal Marketing Group (USA)
KS8157 PRIMARY Lucent Technologies Inc Corporate Headquarters (USA)
506 Solartron Electronics Inc Weston Instruments Div (USA)
KS8157 American Telephone and Telegraph Co (USA)
268504 Solartron Electronics Inc Weston Instruments Div (USA)
Related Parts
SUCCESSOR 6625-00-504-2980 Meter,arbitrary Scale
6625-01-462-6376SUCCESSOR
MULTIMETER
506
6625-01-540-3811SUCCESSOR
CASE,ELECTRICAL-ELECTRONIC TEST
506
6625-00-186-8296INTERCHANGEABLE
AMMETER
5935-00-258-8570INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
715892PC9
6625-00-440-6548INTERCHANGEABLE
AMMETER
6625-00-538-8996INTERCHANGEABLE
AMMETER
6625-00-571-4459INTERCHANGEABLE
MULTIMETER
6625-00-602-3951INTERCHANGEABLE
AMMETER
6625-00-643-0577INTERCHANGEABLE
VOLTMETER
6625-00-643-3146INTERCHANGEABLE
METER,AUDIO LEVEL
6625-00-643-3150INTERCHANGEABLE
METER,AUDIO LEVEL

Frequently Asked Questions

What is NSN 6625-00-635-4180?

NSN 6625-00-635-4180 is a Ammeter, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-635-4180?

NSN 6625-00-635-4180 has 7 cross-referenced part numbers: KS1054 (At and T Corp), KS1054 (American Telephone and Telegraph Co), KS8157 (Lucent Technologies Inc Dba Federal Marketing Group), KS8157 (Lucent Technologies Inc Corporate Headquarters), 506 (Solartron Electronics Inc Weston Instruments Div) and 2 more.

What NSN replaces 6625-00-635-4180?

There are 12 known substitutes for 6625-00-635-4180: 6625-00-504-2980, 6625-01-462-6376, 6625-01-540-3811 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of KS8157?

Key specifications for KS8157: Dial Scale Marking Color: WHITE SINGLE INDICATOR SINGLE RANGE; Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE; Overall Diameter: 2.695 INCHES NOMINAL IN; Features Provided: ZERO ADJUSTER AND SELF-ILLUMINATION FACILITY. 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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