PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

649B3118Voltmeter

Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc · NSN 6625-00-903-7828 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-903-7828 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-903-7828. Primary manufacturer part number: 649B3118.
Features
  • Voltmeter — FSC 6625
  • Mounting Facility Type and Quantity: 4 THREADED STUD(S)
  • Measurement Range: +0.0 TO 40.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.875 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.875 INCHES NOMINAL IN
  • Mounting Stud Diameter: 0.112 INCHES NOMINAL IN
  • Material: PLASTIC
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
Applications
  • Applications requiring Plastic construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-903-7828, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc. Government technical data includes 28 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-903-7828
Primary Part Number649B3118
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerHoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc
StatusACTIVE
Mounting Facility Type and Quantity4 THREADED STUD(S)
Measurement Range+0.0 TO 40.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE
Center to Center Distance Between Mounting Facilities Parallel to Width1.875 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.875 INCHES NOMINAL IN
Mounting Stud Diameter0.112 INCHES NOMINAL IN
MaterialPLASTIC
Circuit Attachment Method and Quantity2 THREADED STUD
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Scale Division Quantity40 SINGLE INDICATOR SINGLE RANGE
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Style DesignatorRECTANGULAR FLUSH MTG
Installation DesignPANEL
ColorUNABLE TO DECODE
Meter Depth Behind Mounting Flange1.125 INCHES NOMINAL IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Meter Body Diameter Behind Mounting Flange2.156 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
Mounting Facility Type and Quantity4 THREADED STUD(S)
Measurement Range+0.0 TO 40.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE
Center to Center Distance Between Mounting Facilities Parallel to Width1.875 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.875 INCHES NOMINAL IN
Mounting Stud Diameter0.112 INCHES NOMINAL IN
MaterialPLASTIC
Circuit Attachment Method and Quantity2 THREADED STUD
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Scale Division Quantity40 SINGLE INDICATOR SINGLE RANGE
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Style DesignatorRECTANGULAR FLUSH MTG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight0.5800 lbs
Cube0.0249 cu ft
Verified Substitutes 3
5950-00-104-5436B3118 INTERCHANGEABLE
Transformer,power
Marine Electric Systems Inc
5310-00-680-52421117 INTERCHANGEABLE
Washer,finishing
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
4530-00-953-506737219B3-1-18 INTERCHANGEABLE
Atomizer Cleaning Base Assembly
Todd Combustion Inc
Cross-Reference Index
Part NumberManufacturer
B3118 Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc (USA)
649B3118 PRIMARY Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc (USA)
752510 H Maimin Co Inc Dba Maimin Technology (USA)
Related Parts
5950-00-104-5436INTERCHANGEABLE
TRANSFORMER,POWER
B3118
5310-00-680-5242INTERCHANGEABLE
WASHER,FINISHING
1117
4530-00-953-5067INTERCHANGEABLE
ATOMIZER CLEANING BASE ASSEMBLY
37219B3-1-18

Frequently Asked Questions

What is NSN 6625-00-903-7828?

NSN 6625-00-903-7828 is a Voltmeter, manufactured by Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-903-7828?

NSN 6625-00-903-7828 has 3 cross-referenced part numbers: B3118 (Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc), 649B3118 (Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc), 752510 (H Maimin Co Inc Dba Maimin Technology).

What NSN replaces 6625-00-903-7828?

There are 3 known substitutes for 6625-00-903-7828: 5950-00-104-5436, 5310-00-680-5242, 4530-00-953-5067. Verify interchangeability with system specifications before substitution.

What are the specifications of 649B3118?

Key specifications for 649B3118: Mounting Facility Type and Quantity: 4 THREADED STUD(S); Measurement Range: +0.0 TO 40.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE; Center to Center Distance Between Mounting Facilities Parallel to Width: 1.875 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.875 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.
PartsTable Design LLC · partstable.com