PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W9660-1Voltmeter

Hobart Brothers Llc · NSN 6625-00-081-2874 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-081-2874 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-081-2874. Primary manufacturer part number: W9660-1.
Features
  • Voltmeter — FSC 6625
  • Measurement Range: +0.0 TO 500.0 VOLTS, AC SINGLE INDICATOR SINGLE RANGE
  • Circuit Attachment Method and Quantity: 2 SOLDER LUG
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
  • Movement Suspension Method: JEWEL PIVOT BASE
  • Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE
  • Circuit Current for Which Designed: AC
  • Dial Scale Marking Color: WHITE SINGLE INDICATOR SINGLE RANGE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-081-2874, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hobart Brothers Llc. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN6625-00-081-2874
Primary Part NumberW9660-1
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerHobart Brothers Llc
StatusACTIVE
Measurement Range+0.0 TO 500.0 VOLTS, AC SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 SOLDER LUG
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Movement Suspension MethodJEWEL PIVOT BASE
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Circuit Current for Which DesignedAC
Dial Scale Marking ColorWHITE SINGLE INDICATOR SINGLE RANGE
Overall Diameter3.500 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
Meter Depth Behind Mounting Flange1.719 INCHES NOMINAL IN
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Meter Body Diameter Behind Mounting Flange2.750 INCHES NOMINAL IN
Indicator TypeDIAL W/POINTER
Movement TypeMOVING IRON VANE
Mounting Hole Diameter0.150 INCHES NOMINAL IN
ColorUNABLE TO DECODE
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Installation DesignPANEL
Measurement Range+0.0 TO 500.0 VOLTS, AC SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 SOLDER LUG
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Movement Suspension MethodJEWEL PIVOT BASE
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Circuit Current for Which DesignedAC
Dial Scale Marking ColorWHITE SINGLE INDICATOR SINGLE RANGE
Overall Diameter3.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-133-7673 (A265-1100)
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight1.3400 lbs
Cube0.0394 cu ft
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
6625-00-086-843613212E1373 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
2520-00-773-5976 INTERCHANGEABLE
Gear Pump Drive
6625-00-840-6504366-205 INTERCHANGEABLE
Voltmeter
Jewell Instruments Llc
6625-00-860-7309560C1-0201 INTERCHANGEABLE
Ammeter
Kurz & Root Generator Company, Llc
6625-00-965-0531 INTERCHANGEABLE
Ammeter
6625-01-106-718813217E4129 INTERCHANGEABLE
Meter,special Scale
Cecom Lr Center
Cross-Reference Index
Part NumberManufacturer
2534 Solartron Electronics Inc Weston Instruments Div (USA)
253221 Solartron Electronics Inc Weston Instruments Div (USA)
W9660-1 PRIMARY Hobart Brothers Llc (USA)
Related Parts
SUCCESSOR 6625-00-133-7673 Ammeter · A265-1100
6625-00-899-7021SUCCESSOR
VOLTMETER
6625-01-249-4924SUCCESSOR
VOLTMETER
378-0789
6625-00-086-8436INTERCHANGEABLE
METER,SPECIAL SCALE
13212E1373
6625-00-673-5562INTERCHANGEABLE
METER,ARBITRARY SCALE
1668283PC2
2520-00-773-5976INTERCHANGEABLE
GEAR PUMP DRIVE
6625-00-840-6504INTERCHANGEABLE
VOLTMETER
366-205
6625-00-860-7309INTERCHANGEABLE
AMMETER
560C1-0201
6625-00-965-0531INTERCHANGEABLE
AMMETER
6625-01-106-7188INTERCHANGEABLE
METER,SPECIAL SCALE
13217E4129

Frequently Asked Questions

What is NSN 6625-00-081-2874?

NSN 6625-00-081-2874 is a Voltmeter, manufactured by Hobart Brothers Llc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-081-2874?

NSN 6625-00-081-2874 has 3 cross-referenced part numbers: 2534 (Solartron Electronics Inc Weston Instruments Div), 253221 (Solartron Electronics Inc Weston Instruments Div), W9660-1 (Hobart Brothers Llc).

What NSN replaces 6625-00-081-2874?

There are 10 known substitutes for 6625-00-081-2874: 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 W9660-1?

Key specifications for W9660-1: Measurement Range: +0.0 TO 500.0 VOLTS, AC SINGLE INDICATOR SINGLE RANGE; Circuit Attachment Method and Quantity: 2 SOLDER LUG; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Movement Suspension Method: JEWEL PIVOT BASE. 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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