PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

310AVoltmeter

Ballantine Laboratories Inc · NSN 6625-00-538-7079 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-538-7079 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-538-7079. Primary manufacturer part number: 310A.
Features
  • Voltmeter — FSC 6625
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Accuracy in Percent: -3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
  • Features Provided: ZERO ADJUSTER
  • Frequency Response Range: +0.001 TO 6.000 MEGAHERTZ
  • Scale Division Quantity: 6 SINGLE INDICATOR SINGLE RANGE
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Scale Selection Method: SWITCH
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-538-7079, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ballantine Laboratories Inc. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-538-7079
Primary Part Number310A
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerBallantine Laboratories Inc
StatusACTIVE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Features ProvidedZERO ADJUSTER
Frequency Response Range+0.001 TO 6.000 MEGAHERTZ
Scale Division Quantity6 SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING COIL, PERMANENT MAGNET
Scale Selection MethodSWITCH
PhaseSINGLE
Power SourceEXTERNAL
Frequency Rating50.000 HERTZ MINIMUM AND 420.000 HERTZ MAXIMUM
Movement Suspension MethodJEWEL PIVOT BASE
Style DesignatorRECTANGULAR OR SQUARE
ColorUNABLE TO DECODE
Features ProvidedZERO ADJUSTER
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Frequency Response Range+0.001 TO 6.000 MEGAHERTZ
Scale Division Quantity6 SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING COIL, PERMANENT MAGNET
Scale Selection MethodSWITCH
PhaseSINGLE
Power SourceEXTERNAL
Frequency Rating50.000 HERTZ MINIMUM AND 420.000 HERTZ MAXIMUM
Movement Suspension MethodJEWEL PIVOT BASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Verified Substitutes 5
6625-00-068-7175310A SUCCESSOR
Analyzer,spectrum
Keysight Technologies Inc
6685-00-213-14754389549-9 INTERCHANGEABLE
Indicator,temperature,electrical
Agco Corp Parts Opn
5120-00-497-341541R02371110 INTERCHANGEABLE
Puller,mechanical
Army, United States Department of the Dba Rock Island Arsenal Jmtc
5960-00-617-8645 INTERCHANGEABLE
Electron Tube
6625-00-819-5911 INTERCHANGEABLE
Oscilloscope
Cross-Reference Index
Part NumberManufacturer
310A PRIMARY Ballantine Laboratories Inc (USA)
Related Parts
6625-00-068-7175SUCCESSOR
ANALYZER,SPECTRUM
310A
6685-00-213-1475INTERCHANGEABLE
INDICATOR,TEMPERATURE,ELECTRICAL
4389549-9
5120-00-497-3415INTERCHANGEABLE
PULLER,MECHANICAL
41R02371110
5960-00-617-8645INTERCHANGEABLE
ELECTRON TUBE
6625-00-819-5911INTERCHANGEABLE
OSCILLOSCOPE

Frequently Asked Questions

What is NSN 6625-00-538-7079?

NSN 6625-00-538-7079 is a Voltmeter, manufactured by Ballantine Laboratories Inc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-538-7079?

NSN 6625-00-538-7079 has 1 cross-referenced part number: 310A (Ballantine Laboratories Inc).

What NSN replaces 6625-00-538-7079?

There are 5 known substitutes for 6625-00-538-7079: 6625-00-068-7175, 6685-00-213-1475, 5120-00-497-3415 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 310A?

Key specifications for 310A: Overall Width: 6.000 INCHES NOMINAL IN; Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE; Accuracy in Percent: -3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES; Features Provided: ZERO ADJUSTER. 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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