PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

253121Ammeter

Solartron Electronics Inc Weston Instruments Div · NSN 6625-00-965-0531 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-965-0531 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-965-0531. Primary manufacturer part number: 253121.
Features
  • Ammeter — FSC 6625
  • Measurement Range: +0.0 TO 80.0 AMPERES, AC SINGLE INDICATOR SECOND RANGE
  • Panel for Which Designed: NONMAGNETIC
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
  • Pointer Color: BLACK SINGLE INDICATOR ALL RANGES
  • Color: UNABLE TO DECODE
  • Nuclear Hardness Critical Feature: NONHARDENED
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR ALL RANGES
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ammeter, cataloged under National Stock Number 6625-00-965-0531, 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 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-965-0531
Primary Part Number253121
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSolartron Electronics Inc Weston Instruments Div
StatusACTIVE
Measurement Range+0.0 TO 80.0 AMPERES, AC SINGLE INDICATOR SECOND RANGE
Panel for Which DesignedNONMAGNETIC
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Pointer ColorBLACK SINGLE INDICATOR ALL RANGES
ColorUNABLE TO DECODE
Nuclear Hardness Critical FeatureNONHARDENED
Dial Scale Marking ColorBLACK SINGLE INDICATOR ALL RANGES
Measurement Range+0.0 TO 40.0 AMPERES, AC SINGLE INDICATOR FIRST RANGE
Movement TypeMOVING IRON VANE
Power SourceEXTERNAL
Special MarkingsRED LINE AT 17.5,26 AND 30 ON TOP RANGE,RED LINE AT 52 ON BOTTOMRANGE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Meter Body Diameter Behind Mounting Flange2.760 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
Meter Depth Behind Mounting Flange1.390 INCHES NOMINAL IN
Scale Selection MethodTERMINAL
Installation DesignPANEL
Environmental ProtectionSHOCK RESISTANT AND VIBRATION RESISTANT
Circuit Construction TypeNONELECTRONIC
Circuit Attachment Method and Quantity2 SOLDER LUG AND 2 THREADED STUD
Mounting Bolt Circle Diameter1.580 INCHES NOMINAL IN
Circuit Current for Which DesignedAC
Indicator TypeDIAL W/POINTER
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Overall Diameter3.500 INCHES NOMINAL IN
Measurement Range+0.0 TO 80.0 AMPERES, AC SINGLE INDICATOR SECOND RANGE
Panel for Which DesignedNONMAGNETIC
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Pointer ColorBLACK SINGLE INDICATOR ALL RANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-133-7673 (A265-1100)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 10
6625-00-133-7673A265-1100 SUCCESSOR
Ammeter
Essex Electro Engineers Inc
Voltmeter
6625-01-249-4924378-0789 SUCCESSOR
Voltmeter
Continental Electronics Corp
6625-00-081-2874W9660-1 INTERCHANGEABLE
Voltmeter
Hobart Brothers Llc
6625-00-086-843613212E1373 INTERCHANGEABLE
Meter,special Scale
Cecom Lr Center
6625-00-673-55621668283PC2 INTERCHANGEABLE
Meter,arbitrary Scale
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6625-00-840-6504366-205 INTERCHANGEABLE
Voltmeter
Jewell Instruments Llc
6625-00-860-7309560C1-0201 INTERCHANGEABLE
Ammeter
Kurz & Root Generator Company, Llc
6625-01-106-718813217E4129 INTERCHANGEABLE
Meter,special Scale
Cecom Lr Center
5975-01-318-424523A00034 INTERCHANGEABLE
Conduit Assembly,nonmetallic,ele
Joslyn Sunbank Company, Llc Dba Joslyn Sunbank Co Llc
Cross-Reference Index
Part NumberManufacturer
253121 Solartron Electronics Inc Weston Instruments Div (USA)
2534 Solartron Electronics Inc Weston Instruments Div (USA)
Related Parts
SUCCESSOR 6625-00-133-7673 Ammeter · A265-1100
6625-00-899-7021SUCCESSOR
VOLTMETER
6625-01-249-4924SUCCESSOR
VOLTMETER
378-0789
6625-00-081-2874INTERCHANGEABLE
VOLTMETER
W9660-1
6625-00-086-8436INTERCHANGEABLE
METER,SPECIAL SCALE
13212E1373
6625-00-673-5562INTERCHANGEABLE
METER,ARBITRARY SCALE
1668283PC2
6625-00-840-6504INTERCHANGEABLE
VOLTMETER
366-205
6625-00-860-7309INTERCHANGEABLE
AMMETER
560C1-0201
6625-01-106-7188INTERCHANGEABLE
METER,SPECIAL SCALE
13217E4129
5975-01-318-4245INTERCHANGEABLE
CONDUIT ASSEMBLY,NONMETALLIC,ELE
23A00034

Frequently Asked Questions

What is NSN 6625-00-965-0531?

NSN 6625-00-965-0531 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 6625-00-965-0531?

NSN 6625-00-965-0531 has 2 cross-referenced part numbers: 253121 (Solartron Electronics Inc Weston Instruments Div), 2534 (Solartron Electronics Inc Weston Instruments Div).

What NSN replaces 6625-00-965-0531?

There are 10 known substitutes for 6625-00-965-0531: 6625-00-133-7673, 6625-00-899-7021, 6625-01-249-4924 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 253121?

Key specifications for 253121: Measurement Range: +0.0 TO 80.0 AMPERES, AC SINGLE INDICATOR SECOND RANGE; Panel for Which Designed: NONMAGNETIC; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Pointer Color: BLACK SINGLE INDICATOR ALL RANGES. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com