PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KA-241Ammeter

Hughes Corp Div Dba Weschler Instruments · NSN 6625-01-245-6779 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-245-6779 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-245-6779. Primary manufacturer part number: KA-241.
Features
  • Ammeter — FSC 6625
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 3.375 INCHES NOMINAL IN
  • Mounting Arrangement Style: FOUR HOLE/STUD RECTANGULAR/SQUARE
  • Mounting Hole Diameter: 0.313 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 3.375 INCHES NOMINAL IN
  • Movement Type: MOVING IRON VANE
  • Meter Body Diameter Behind Mounting Flange: 3.960 INCHES NOMINAL IN
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-01-245-6779, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hughes Corp Div Dba Weschler Instruments. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-01-245-6779
Primary Part NumberKA-241
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerHughes Corp Div Dba Weschler Instruments
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Length3.375 INCHES NOMINAL IN
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Mounting Hole Diameter0.313 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width3.375 INCHES NOMINAL IN
Movement TypeMOVING IRON VANE
Meter Body Diameter Behind Mounting Flange3.960 INCHES NOMINAL IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange3.188 INCHES NOMINAL IN
Accuracy in Percent-1.5 TO 1.5 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Movement Suspension MethodTAUT BAND
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Features ProvidedZERO ADJUSTER
Special Test FeaturesCONFORMS TO MIL-M-16034
FSC Application DataTEST SET,ELECT. EQUIP.
Scale Graduation TypeNONLINEAR SINGLE INDICATOR SINGLE RANGE
Nuclear Hardness Critical FeatureNONHARDENED
MaterialPLASTIC
Special MarkingsRED MARK AT 800 AMP
Scale Selection MethodTERMINAL
Style DesignatorRECTANGULAR FLUSH MTG
ColorUNABLE TO DECODE
Circuit Attachment Method and Quantity2 THREADED STUD
Mounting Facility Type and Quantity4 SCREW AND 4 UNTHREADED HOLE(S)
PhaseSINGLE
Measurement Range+0.0 TO 1000.0 AMPERES, AC SINGLE INDICATOR SINGLE RANGE
Power SourceEXTERNAL
Circuit Construction TypeNONELECTRONIC
Indicator TypeDIAL W/POINTER
Dielectric Withstanding Voltage in Volts2600.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJF
Weight2.7500 lbs
Cube0.1730 cu ft
Verified Substitutes 11
Voltmeter
6625-00-014-4367291B460A10 INTERCHANGEABLE
Voltmeter
Hughes Corp Div Weschler Electric
6625-00-018-9061 INTERCHANGEABLE
Ammeter
6625-00-409-1941291B461A28 INTERCHANGEABLE
Ammeter
Hughes Corp Div Dba Weschler Instruments
6625-00-648-9784291B460A16 INTERCHANGEABLE
Voltmeter
Westinghouse Electric Corp
6625-01-007-0077101133LS-UP7/JHU INTERCHANGEABLE
Ammeter
Yokogawa Corporation of America
6625-01-017-7508825965-45A INTERCHANGEABLE
Voltmeter
L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
6625-01-017-7509825965-47A INTERCHANGEABLE
Ammeter
L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
6625-01-243-3601AD9371-1 PIECE 2 INTERCHANGEABLE
Ammeter
Plainville Electrical Products Company, the Dba Plainville Electrical Products
6625-01-243-3602AD9371-1 PIECE 10,13 INTERCHANGEABLE
Ammeter
Plainville Electrical Products Company, the Dba Plainville Electrical Products
Cross-Reference Index
Part NumberManufacturer
KA-241 Hughes Corp Div Dba Weschler Instruments (USA)
304A190 ITEM 18 Westinghouse Electric Corp Control Business Unit
Related Parts
6625-01-245-6776SUCCESSOR
VOLTMETER
6625-00-014-4367INTERCHANGEABLE
VOLTMETER
291B460A10
6625-00-018-9061INTERCHANGEABLE
AMMETER
6625-00-409-1941INTERCHANGEABLE
AMMETER
291B461A28
6625-00-648-9784INTERCHANGEABLE
VOLTMETER
291B460A16
6625-01-007-0077INTERCHANGEABLE
AMMETER
101133LS-UP7/JHU
6625-01-017-7508INTERCHANGEABLE
VOLTMETER
825965-45A
6625-01-017-7509INTERCHANGEABLE
AMMETER
825965-47A
6625-01-243-3601INTERCHANGEABLE
AMMETER
AD9371-1 PIECE 2
6625-01-243-3602INTERCHANGEABLE
AMMETER
AD9371-1 PIECE 10,13
6625-01-245-3434INTERCHANGEABLE
AMMETER
CDHSI00104

Frequently Asked Questions

What is NSN 6625-01-245-6779?

NSN 6625-01-245-6779 is a Ammeter, manufactured by Hughes Corp Div Dba Weschler Instruments, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-245-6779?

NSN 6625-01-245-6779 has 2 cross-referenced part numbers: KA-241 (Hughes Corp Div Dba Weschler Instruments), 304A190 ITEM 18 (Westinghouse Electric Corp Control Business Unit).

What NSN replaces 6625-01-245-6779?

There are 11 known substitutes for 6625-01-245-6779: 6625-01-245-6776, 6625-00-014-4367, 6625-00-018-9061 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of KA-241?

Key specifications for KA-241: Center to Center Distance Between Mounting Facilities Parallel to Length: 3.375 INCHES NOMINAL IN; Mounting Arrangement Style: FOUR HOLE/STUD RECTANGULAR/SQUARE; Mounting Hole Diameter: 0.313 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Width: 3.375 INCHES NOMINAL IN. 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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