PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8991146-2Voltmeter

Lockheed Martin Corporation Div Rms · NSN 6625-00-079-6113 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-079-6113 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-079-6113. Primary manufacturer part number: 8991146-2.
Features
  • Voltmeter — FSC 6625
  • Movement Suspension Method: JEWEL PIVOT BASE
  • Installation Design: PANEL
  • Mounting Stud Length: 0.375 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.312 INCHES NOMINAL IN
  • Circuit Current for Which Designed: AC
  • Measurement Range: +3.0 TO 6.0 VOLTS, AC SINGLE INDICATOR SINGLE RANGE
  • Circuit Attachment Method and Quantity: 2 SOLDER STUD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-079-6113, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-079-6113
Primary Part Number8991146-2
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusCANCELLED
Movement Suspension MethodJEWEL PIVOT BASE
Installation DesignPANEL
Mounting Stud Length0.375 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.312 INCHES NOMINAL IN
Circuit Current for Which DesignedAC
Measurement Range+3.0 TO 6.0 VOLTS, AC SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 SOLDER STUD
Mounting Facility Type and Quantity4 THREADED STUD(S)
Center to Center Distance Between Mounting Facilities Parallel to Length1.312 INCHES NOMINAL IN
Meter Body Diameter Behind Mounting Flange1.510 INCHES NOMINAL IN
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Movement TypeMOVING IRON VANE
Mounting Stud Diameter0.112 INCHES NOMINAL IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Style DesignatorRECTANGULAR SEMI-FLUSH MTG
ColorUNABLE TO DECODE
Meter Depth Behind Mounting Flange1.000 INCHES NOMINAL IN
Movement Suspension MethodJEWEL PIVOT BASE
Installation DesignPANEL
Mounting Stud Length0.375 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.312 INCHES NOMINAL IN
Circuit Current for Which DesignedAC
Measurement Range+3.0 TO 6.0 VOLTS, AC SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 SOLDER STUD
Mounting Facility Type and Quantity4 THREADED STUD(S)
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 3
No Item Name Available
4730-00-186-9961AS5195W0402 INTERCHANGEABLE
Elbow,pipe to Tube
Sae International Dba Sae International
5342-01-442-892977756 INTERCHANGEABLE
Bracket,engine Accessory
Textron Lycoming Inc Williamsport Plant
Cross-Reference Index
Part NumberManufacturer
10-014194 Phaostron Instrument and Electronic Company (USA)
777-56 Mkc Electronics Inc Dba Mk Electronics Div Mkc Electronics Inc, Dba Mk Electronics (USA)
8991146-2 PRIMARY Lockheed Martin Corporation Div Rms (USA)
MK777-56 Mkc Electronics Inc Dba Mk Electronics Div Mkc Electronics Inc, Dba Mk Electronics (USA)
8991146-2REVD Lockheed Martin Corporation Div Rms (USA)
Related Parts
6625-00-964-9815SUCCESSOR
NO ITEM NAME AVAILABLE
4730-00-186-9961INTERCHANGEABLE
ELBOW,PIPE TO TUBE
AS5195W0402
5342-01-442-8929INTERCHANGEABLE
BRACKET,ENGINE ACCESSORY
77756

Frequently Asked Questions

What is NSN 6625-00-079-6113?

NSN 6625-00-079-6113 is a Voltmeter, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-079-6113?

NSN 6625-00-079-6113 has 5 cross-referenced part numbers: 10-014194 (Phaostron Instrument and Electronic Company), 777-56 (Mkc Electronics Inc Dba Mk Electronics Div Mkc Electronics Inc, Dba Mk Electronics), 8991146-2 (Lockheed Martin Corporation Div Rms), MK777-56 (Mkc Electronics Inc Dba Mk Electronics Div Mkc Electronics Inc, Dba Mk Electronics), 8991146-2REVD (Lockheed Martin Corporation Div Rms).

What NSN replaces 6625-00-079-6113?

There are 3 known substitutes for 6625-00-079-6113: 6625-00-964-9815, 4730-00-186-9961, 5342-01-442-8929. Verify interchangeability with system specifications before substitution.

What are the specifications of 8991146-2?

Key specifications for 8991146-2: Movement Suspension Method: JEWEL PIVOT BASE; Overall Height: 1.750 INCHES NOMINAL IN; Installation Design: PANEL; Mounting Stud Length: 0.375 INCHES NOMINAL IN. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-079-6113 still in active supply?

NSN 6625-00-079-6113 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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