PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

638509Voltmeter

Phaostron Instrument and Electronic Company · NSN 6625-01-509-7582 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-509-7582 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-509-7582. Primary manufacturer part number: 638509.
Features
  • Voltmeter — FSC 6625
  • Indicator Type: DIAL W/POINTER
  • Measurement Range: +0.0 TO 20.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE
  • Installation Design: PANEL
  • Indicator Type: DIAL W/POINTER
  • Measurement Range: +0.0 TO 20.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE
  • Installation Design: PANEL
  • 4 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Voltmeter, cataloged under National Stock Number 6625-01-509-7582, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Phaostron Instrument and Electronic Company. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-01-509-7582
Primary Part Number638509
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerPhaostron Instrument and Electronic Company
StatusACTIVE
Indicator TypeDIAL W/POINTER
Measurement Range+0.0 TO 20.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Indicator TypeDIAL W/POINTER
Measurement Range+0.0 TO 20.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeZF
Weight0.2700 lbs
Cube0.0380 cu ft
Verified Substitutes 8
6130-01-507-351482073-001 INTERCHANGEABLE
Power Supply Assembly
Evoqua Water Technologies Llc
6130-01-507-3515W3T106731 INTERCHANGEABLE
Power Supply Assembly
Evoqua Water Technologies Llc
5950-01-507-3732A1-81886 ITEM 25 INTERCHANGEABLE
Transformer,power
Evoqua Water Technologies Llc
5930-01-507-936081972-003 INTERCHANGEABLE
Switch,rotary
Evoqua Water Technologies Llc
5925-01-507-936781867-002 INTERCHANGEABLE
Circuit Breaker
Evoqua Water Technologies Llc
5930-01-507-9369W2T109448 INTERCHANGEABLE
Switch,rotary
Evoqua Water Technologies Llc
6625-01-509-7580638315 INTERCHANGEABLE
Ammeter
Phaostron Instrument and Electronic Company
6110-01-550-0169 INTERCHANGEABLE
Panel,control,electrical-Electro
Cross-Reference Index
Part NumberManufacturer
A1-81886 ITEM 17 Evoqua Water Technologies Llc (USA)
638509 PRIMARY Phaostron Instrument and Electronic Company (USA)
81977-001 Evoqua Water Technologies Llc (USA)
A1-81886 Evoqua Water Technologies Llc (USA)
Related Parts
6130-01-507-3514INTERCHANGEABLE
POWER SUPPLY ASSEMBLY
82073-001
6130-01-507-3515INTERCHANGEABLE
POWER SUPPLY ASSEMBLY
W3T106731
5950-01-507-3732INTERCHANGEABLE
TRANSFORMER,POWER
A1-81886 ITEM 25
5930-01-507-9360INTERCHANGEABLE
SWITCH,ROTARY
81972-003
5925-01-507-9367INTERCHANGEABLE
CIRCUIT BREAKER
81867-002
5930-01-507-9369INTERCHANGEABLE
SWITCH,ROTARY
W2T109448
6625-01-509-7580INTERCHANGEABLE
AMMETER
638315
6110-01-550-0169INTERCHANGEABLE
PANEL,CONTROL,ELECTRICAL-ELECTRO

Frequently Asked Questions

What is NSN 6625-01-509-7582?

NSN 6625-01-509-7582 is a Voltmeter, manufactured by Phaostron Instrument and Electronic Company, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-509-7582?

NSN 6625-01-509-7582 has 4 cross-referenced part numbers: A1-81886 ITEM 17 (Evoqua Water Technologies Llc), 638509 (Phaostron Instrument and Electronic Company), 81977-001 (Evoqua Water Technologies Llc), A1-81886 (Evoqua Water Technologies Llc).

What NSN replaces 6625-01-509-7582?

There are 8 known substitutes for 6625-01-509-7582: 6130-01-507-3514, 6130-01-507-3515, 5950-01-507-3732 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 638509?

Key specifications for 638509: Indicator Type: DIAL W/POINTER; End Item Identification: PART OF ASSEMBLY,CONTROL ENCLOSURE, ELECTRO-CHLORINATOR A1-81886; Measurement Range: +0.0 TO 20.0 VOLTS, DC SINGLE INDICATOR SINGLE RANGE; Installation Design: PANEL. 8 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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