PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

301AVoltmeter

North Atlantic Industries, Inc. Dba North Atlantic Industries · NSN 6625-00-470-2722 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-470-2722 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-470-2722. Primary manufacturer part number: 301A.
Features
  • Voltmeter — FSC 6625
  • Style Designator: RACK
  • Power Source: EXTERNAL
  • Reference Data and Literature: MIL-STD-1364C (NAVY),30 MAY 1975,PAGE 151
  • Functional Description: PHASE SENSITIVE NULL DETECTOR AND VOLTMETER; A PHASE METER CAPABLE OF MEASURING IN-PHASE NULLS,PHASE ANGLE,TOTAL VOLTAGE,FUNDAMENTAL VOLTAGE,IN-PHASE AND QUADRATURE VOLTAGES; MEASURES COMPLEX SIGNALS AND THEIR VECTOR COMPONENTS OVER A BROAD RANGE OF FREQUENCIES
  • Installation Design: PANEL
  • Frequency Rating: 50.000 HERTZ MINIMUM AND 400.000 HERTZ MAXIMUM
  • Phase: SINGLE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-470-2722, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is North Atlantic Industries, Inc. Dba North Atlantic Industries. Government technical data includes 22 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-470-2722
Primary Part Number301A
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerNorth Atlantic Industries, Inc. Dba North Atlantic Industries
StatusACTIVE
Style DesignatorRACK
Power SourceEXTERNAL
Reference Data and LiteratureMIL-STD-1364C (NAVY),30 MAY 1975,PAGE 151
Functional DescriptionPHASE SENSITIVE NULL DETECTOR AND VOLTMETER; A PHASE METER CAPABLE OF MEASURING IN-PHASE NULLS,PHASE ANGLE,TOTAL VOLTAGE,FUNDAMENTAL VOLTAGE,IN-PHASE AND QUADRATURE VOLTAGES; MEASURES COMPLEX SIGNALS AND THEIR VECTOR COMPONENTS OVER A BROAD RANGE OF FREQUENCIES
Installation DesignPANEL
Frequency Rating50.000 HERTZ MINIMUM AND 400.000 HERTZ MAXIMUM
PhaseSINGLE
Relationship to Similar EquipmentSUITABLE SUBSTITUTE 6625001067465,6625003689229,6625004110425,6625008398722,6625009199875
Functional ClassificationAA-1.1
Frequency Response Range+0.010 TO 100.000 KILOHERTZ
Entry Date76-10-01
Power SourceEXTERNAL
Reference Data and LiteratureMIL-STD-1364C (NAVY),30 MAY 1975,PAGE 151
Functional DescriptionPHASE SENSITIVE NULL DETECTOR AND VOLTMETER; A PHASE METER CAPABLE OF MEASURING IN-PHASE NULLS,PHASE ANGLE,TOTAL VOLTAGE,FUNDAMENTAL VOLTAGE,IN-PHASE AND QUADRATURE VOLTAGES; MEASURES COMPLEX SIGNALS AND THEIR VECTOR COMPONENTS OVER A BROAD RANGE OF FREQUENCIES
Installation DesignPANEL
Style DesignatorRACK
Frequency Rating50.000 HERTZ MINIMUM AND 400.000 HERTZ MAXIMUM
PhaseSINGLE
Relationship to Similar EquipmentSUITABLE SUBSTITUTE 6625001067465,6625003689229,6625004110425,6625008398722,6625009199875
Functional ClassificationAA-1.1
Frequency Response Range+0.010 TO 100.000 KILOHERTZ
Entry Date76-10-01
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-557-0249
HAZMATNo
Shelf Life Code0
Criticality Code00
Unit of IssueEA
SMR CodeJH
Weight33.2000 lbs
Cube1.4187 cu ft
Verified Substitutes 9
Oscilloscope
6625-00-600-9621301A SUCCESSOR
Osometer Vapor Pressure
Agilent Technologies, Inc. Div Agilent Technologies Headquarters
6680-00-016-5538301CP INTERCHANGEABLE
Indicator,liquid Quantity
Stewart-Warner Corporation
5905-00-108-4316 INTERCHANGEABLE
Resistor,variable,wire Wound,non
5905-00-112-4308 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
5330-00-132-1415301A INTERCHANGEABLE
Gasket
Tank Truck Mfg Inc
5905-00-175-5578J44516 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Rockwell Automation, Inc. Dba Rockwell Automation
6220-00-491-05071265-99A INTERCHANGEABLE
Lens,light
Perko Inc
5342-00-537-5956VBM-1062 INTERCHANGEABLE
Mount,resilient,weapon System
Minor Rubber Co Inc
Cross-Reference Index
Part NumberManufacturer
301A Nai Technologies Inc (USA)
301A PRIMARY North Atlantic Industries, Inc. Dba North Atlantic Industries (USA)
Related Parts
SUCCESSOR 6625-00-557-0249 Oscilloscope
6625-00-600-9621SUCCESSOR
OSOMETER VAPOR PRESSURE
301A
6680-00-016-5538INTERCHANGEABLE
INDICATOR,LIQUID QUANTITY
301CP
5905-00-108-4316INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
5905-00-112-4308INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
5330-00-132-1415INTERCHANGEABLE
GASKET
301A
5905-00-175-5578INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
J44516
6220-00-491-0507INTERCHANGEABLE
LENS,LIGHT
1265-99A
5342-00-537-5956INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
VBM-1062

Frequently Asked Questions

What is NSN 6625-00-470-2722?

NSN 6625-00-470-2722 is a Voltmeter, manufactured by North Atlantic Industries, Inc. Dba North Atlantic Industries, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-470-2722?

NSN 6625-00-470-2722 has 2 cross-referenced part numbers: 301A (Nai Technologies Inc), 301A (North Atlantic Industries, Inc. Dba North Atlantic Industries).

What NSN replaces 6625-00-470-2722?

There are 9 known substitutes for 6625-00-470-2722: 6625-00-557-0249, 6625-00-600-9621, 6680-00-016-5538 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 301A?

Key specifications for 301A: Style Designator: RACK; Overall Depth: 14.000 INCHES NOMINAL IN; Power Source: EXTERNAL; Reference Data and Literature: MIL-STD-1364C (NAVY),30 MAY 1975,PAGE 151. 28 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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