PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S291B465A23Ammeter

Westinghouse Electric Corp Control Business Unit · NSN 6625-00-557-5485 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-557-5485 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-557-5485. Primary manufacturer part number: S291B465A23.
Features
  • Ammeter — FSC 6625
  • Installation Design: PANEL
  • Test Data Document: 81349-MIL-M-16034 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Mounting Stud Length: 0.500 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
  • Panel for Which Designed: MAGNETIC
  • Mounting Arrangement Style: FOUR HOLE/STUD RECTANGULAR/SQUARE
  • Movement Type: MOVING IRON VANE
  • Meter Depth Behind Mounting Flange: 10.000 INCHES MAXIMUM IN
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-557-5485, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Westinghouse Electric Corp Control Business Unit. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-557-5485
Primary Part NumberS291B465A23
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerWestinghouse Electric Corp Control Business Unit
StatusACTIVE
Installation DesignPANEL
Test Data Document81349-MIL-M-16034 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Mounting Stud Length0.500 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Panel for Which DesignedMAGNETIC
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Movement TypeMOVING IRON VANE
Meter Depth Behind Mounting Flange10.000 INCHES MAXIMUM IN
Mounting Facility Type and Quantity4 THREADED STUD(S)
Style DesignatorRECTANGULAR FLUSH MTG
Nuclear Hardness Critical FeatureNONHARDENED
Measurement Range+0.0 TO 10.0 AMPERES, AC SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
Accuracy in Percent-1.5 TO 1.5 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
MaterialPLASTIC
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Scale Selection MethodTERMINAL
Circuit Attachment Method and Quantity2 THREADED STUD
Power SourceEXTERNAL
Circuit Current for Which DesignedAC
Indicator TypeDIAL W/POINTER
Meter Body Diameter Behind Mounting Flange3.980 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Length3.375 INCHES NOMINAL IN
Circuit Construction TypeELECTRONIC, SOLID STATE
Mounting Stud Diameter0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJF
Weight2.5468 lbs
Cube0.1499 cu ft
Verified Substitutes 1
Ammeter
Cross-Reference Index
Part NumberManufacturer
S291B465A23 Westinghouse Electric Corp Control Business Unit
416-6201-1151602REVAPC5 Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (USA)
MR49W010ACAAH Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-16034/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-M-16034/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
322-6201-1151718REVAPC5 Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (USA)
1730129H1SH0CK Westinghouse Electric Corp (USA)
Related Parts
6625-00-186-8772SUCCESSOR
AMMETER

Frequently Asked Questions

What is NSN 6625-00-557-5485?

NSN 6625-00-557-5485 is a Ammeter, manufactured by Westinghouse Electric Corp Control Business Unit, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-557-5485?

NSN 6625-00-557-5485 has 7 cross-referenced part numbers: S291B465A23 (Westinghouse Electric Corp Control Business Unit), 416-6201-1151602REVAPC5 (Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility), MR49W010ACAAH (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-16034/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-M-16034/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 2 more.

What NSN replaces 6625-00-557-5485?

There is 1 known substitute for 6625-00-557-5485: 6625-00-186-8772. Verify interchangeability with system specifications before substitution.

What are the specifications of S291B465A23?

Key specifications for S291B465A23: Installation Design: PANEL; Test Data Document: 81349-MIL-M-16034 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).; Mounting Stud Length: 0.500 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Panel for Which Designed: MAGNETIC. 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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