PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

311U8Voltmeter

Ballantine Laboratories Inc · NSN 6625-00-775-1791 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-775-1791 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-775-1791. Primary manufacturer part number: 311U8.
Features
  • Voltmeter — FSC 6625
  • Furnished Items and Quantity: INSTRUCTION BOOK 1
  • Sensitivity Rating: 600.0 MICROAMPERES
  • Color: UNABLE TO DECODE
  • Surface Treatment: ENAMEL
  • Operating Voltage Rating in Volts: 115.0 AC NOMINAL
  • Measurement Range: -70.0 TO 52.0 DECIBELS SINGLE INDICATOR FIRST RANGE
  • Measurement Range: +0.0 TO 300.0 VOLTS, AC SINGLE INDICATOR SECOND RANGE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-775-1791, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-775-1791
Primary Part Number311U8
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerBallantine Laboratories Inc
StatusCANCELLED
Furnished Items and QuantityINSTRUCTION BOOK 1
Sensitivity Rating600.0 MICROAMPERES
ColorUNABLE TO DECODE
Surface TreatmentENAMEL
Operating Voltage Rating in Volts115.0 AC NOMINAL
Measurement Range-70.0 TO 52.0 DECIBELS SINGLE INDICATOR FIRST RANGE
Measurement Range+0.0 TO 300.0 VOLTS, AC SINGLE INDICATOR SECOND RANGE
PhaseSINGLE
Features ProvidedZERO ADJUSTER
Frequency Rating50.000 HERTZ MINIMUM AND 400.000 HERTZ MAXIMUM
Accuracy in Percent-1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Power SourceINTERNAL
Furnished Items and QuantityINSTRUCTION BOOK 1
Sensitivity Rating600.0 MICROAMPERES
ColorUNABLE TO DECODE
Surface TreatmentENAMEL
Operating Voltage Rating in Volts115.0 AC NOMINAL
Measurement Range-70.0 TO 52.0 DECIBELS SINGLE INDICATOR FIRST RANGE
Measurement Range+0.0 TO 300.0 VOLTS, AC SINGLE INDICATOR SECOND RANGE
PhaseSINGLE
Features ProvidedZERO ADJUSTER
Frequency Rating50.000 HERTZ MINIMUM AND 400.000 HERTZ MAXIMUM
Accuracy in Percent-1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeU
Unit of IssueEA
SMR CodeVU
Weight25.0000 lbs
Cube3.7892 cu ft
Verified Substitutes 5
No Item Name Available
6625-00-058-2777 INTERCHANGEABLE
Voltmeter
6625-00-450-2066 INTERCHANGEABLE
Voltmeter
6625-00-488-4040303-07 INTERCHANGEABLE
Voltmeter
Ballantine Laboratories Inc
6625-01-010-35143046A INTERCHANGEABLE
Voltmeter
Ballantine Laboratories Inc
Cross-Reference Index
Part NumberManufacturer
A-A-50680 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
311U8 PRIMARY Ballantine Laboratories Inc (USA)
Related Parts
6625-00-498-0976SUCCESSOR
NO ITEM NAME AVAILABLE
6625-00-058-2777INTERCHANGEABLE
VOLTMETER
6625-00-450-2066INTERCHANGEABLE
VOLTMETER
6625-00-488-4040INTERCHANGEABLE
VOLTMETER
303-07
6625-01-010-3514INTERCHANGEABLE
VOLTMETER
3046A

Frequently Asked Questions

What is NSN 6625-00-775-1791?

NSN 6625-00-775-1791 is a Voltmeter, manufactured by Ballantine Laboratories Inc, classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-775-1791?

NSN 6625-00-775-1791 has 2 cross-referenced part numbers: A-A-50680 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 311U8 (Ballantine Laboratories Inc).

What NSN replaces 6625-00-775-1791?

There are 5 known substitutes for 6625-00-775-1791: 6625-00-498-0976, 6625-00-058-2777, 6625-00-450-2066 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 311U8?

Key specifications for 311U8: Furnished Items and Quantity: INSTRUCTION BOOK 1; Overall Length: 13.000 INCHES NOMINAL IN; Sensitivity Rating: 600.0 MICROAMPERES; Color: UNABLE TO DECODE. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-775-1791 still in active supply?

NSN 6625-00-775-1791 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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