PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4966-125VMeter,electrical Frequency

Avo Intl · NSN 6625-00-255-5815 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-255-5815 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-255-5815. Primary manufacturer part number: 4966-125V.
Features
  • Meter,electrical Frequency — FSC 6625
  • Color: UNABLE TO DECODE
  • Dielectric Withstanding Voltage in Volts: 3000.0
  • Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE
  • Resonant Reed Quantity: 11
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
  • Overall Diameter: 3.500 INCHES NOMINAL IN
  • Style Designator: ROUND FLUSH MTG
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Meter,electrical Frequency, cataloged under National Stock Number 6625-00-255-5815, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Avo Intl. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-00-255-5815
Primary Part Number4966-125V
Item NameMeter,electrical Frequency
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerAvo Intl
StatusACTIVE
ColorUNABLE TO DECODE
Dielectric Withstanding Voltage in Volts3000.0
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Resonant Reed Quantity11
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Overall Diameter3.500 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
Circuit Attachment Method and Quantity2 BINDING POST
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Register Quantity1
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Indicator TypeDIAL W/POINTER
Frequency Response Range+57.500 TO 62.500 HERTZ
Meter Body Diameter Behind Mounting Flange2.800 INCHES NOMINAL IN
Installation DesignPANEL
Measurement Range+57.5 TO 62.5 HERTZ SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-0.3 TO 0.3 AT 1/2 SCALE SINGLE INDICATOR SINGLE RANGE
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Movement TypeVIBRATING REED
Meter Depth Behind Mounting Flange3.062 INCHES NOMINAL IN
ColorUNABLE TO DECODE
Dielectric Withstanding Voltage in Volts3000.0
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Resonant Reed Quantity11
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Overall Diameter3.500 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5365-00-019-989940000780 INTERCHANGEABLE
Ring,externally Threaded
Akron Brass Company
5950-00-104-274211205 INTERCHANGEABLE
Transformer,power
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
5330-00-285-1332 INTERCHANGEABLE
Seal,plain Encased
5930-00-660-5584 INTERCHANGEABLE
Switch,toggle
1650-00-819-66094966B INTERCHANGEABLE
Cylinder Assembly,actuating,line
Equipment & Supply Inc Dba Equipment & Supply Inc
5950-01-047-1907 INTERCHANGEABLE
Transformer,power
Cross-Reference Index
Part NumberManufacturer
F226-7671218 CAGE 00000
F291-5630986 CAGE 00000
4966-125V PRIMARY Avo Intl (USA)
4966 PRIMARY Avo Intl (USA)
Related Parts
5365-00-019-9899INTERCHANGEABLE
RING,EXTERNALLY THREADED
40000780
5950-00-104-2742INTERCHANGEABLE
TRANSFORMER,POWER
11205
5330-00-285-1332INTERCHANGEABLE
SEAL,PLAIN ENCASED
5930-00-660-5584INTERCHANGEABLE
SWITCH,TOGGLE
1650-00-819-6609INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
4966B
5950-01-047-1907INTERCHANGEABLE
TRANSFORMER,POWER

Frequently Asked Questions

What is NSN 6625-00-255-5815?

NSN 6625-00-255-5815 is a Meter,electrical Frequency, manufactured by Avo Intl, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-255-5815?

NSN 6625-00-255-5815 has 4 cross-referenced part numbers: F226-7671218, F291-5630986, 4966-125V (Avo Intl), 4966 (Avo Intl).

What NSN replaces 6625-00-255-5815?

There are 6 known substitutes for 6625-00-255-5815: 5365-00-019-9899, 5950-00-104-2742, 5330-00-285-1332 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4966-125V?

Key specifications for 4966-125V: Color: UNABLE TO DECODE; Dielectric Withstanding Voltage in Volts: 3000.0; Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE; Resonant Reed Quantity: 11. 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