PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

263Voltmeter

Keithley Instruments, Llc · NSN 6625-01-259-1545 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-259-1545 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-259-1545. Primary manufacturer part number: 263.
Features
  • Voltmeter — FSC 6625
  • Power Source: EXTERNAL
  • Style Designator: RECTANGULAR OR SQUARE
  • Material: ALUMINUM
  • Indicator Type: DIAL W/POINTER
  • Movement Type: THERMAL
  • Nuclear Hardness Critical Feature: NONHARDENED
  • Power Source: EXTERNAL
Applications
  • Applications requiring Aluminum construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-01-259-1545, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Keithley Instruments, Llc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-01-259-1545
Primary Part Number263
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerKeithley Instruments, Llc
StatusACTIVE
Power SourceEXTERNAL
Style DesignatorRECTANGULAR OR SQUARE
MaterialALUMINUM
Indicator TypeDIAL W/POINTER
Movement TypeTHERMAL
Nuclear Hardness Critical FeatureNONHARDENED
Power SourceEXTERNAL
Style DesignatorRECTANGULAR OR SQUARE
MaterialALUMINUM
Indicator TypeDIAL W/POINTER
Movement TypeTHERMAL
Nuclear Hardness Critical FeatureNONHARDENED
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5999-00-033-5512 (10-40450-12S)
HAZMATNo
Verified Substitutes 4
5999-00-033-551210-40450-12S SUCCESSOR
Shielding Gasket,electronic
Amphenol Corp Div Amphenol Aerospace Operations
6625-00-877-4136GM263 SUCCESSOR
Wattmeter
Microwave Devices Inc
6625-00-918-3508263 SUCCESSOR
Multimeter
Simpson Electric Company, Inc.
5999-01-029-09012144087-1 SUCCESSOR
Clip,electrical
Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div
Cross-Reference Index
Part NumberManufacturer
263 Keithley Instruments, Llc (USA)
262 Keithley Instruments, Llc (USA)
Related Parts
SUCCESSOR 5999-00-033-5512 Shielding Gasket,electronic · 10-40450-12S
6625-00-877-4136SUCCESSOR
WATTMETER
GM263
6625-00-918-3508SUCCESSOR
MULTIMETER
263
5999-01-029-0901SUCCESSOR
CLIP,ELECTRICAL
2144087-1

Frequently Asked Questions

What is NSN 6625-01-259-1545?

NSN 6625-01-259-1545 is a Voltmeter, manufactured by Keithley Instruments, Llc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-259-1545?

NSN 6625-01-259-1545 has 2 cross-referenced part numbers: 263 (Keithley Instruments, Llc), 262 (Keithley Instruments, Llc).

What NSN replaces 6625-01-259-1545?

There are 4 known substitutes for 6625-01-259-1545: 5999-00-033-5512, 6625-00-877-4136, 6625-00-918-3508 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 263?

Key specifications for 263: Power Source: EXTERNAL; Style Designator: RECTANGULAR OR SQUARE; Material: ALUMINUM; Indicator Type: DIAL W/POINTER. 18 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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