PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

321TVoltmeter

Triplett (bluffton) Corporation Dba Lfe Instruments · NSN 6625-00-710-2758 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-710-2758 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-710-2758. Primary manufacturer part number: 321T.
Features
  • Voltmeter — FSC 6625
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
  • Meter Body Diameter Behind Mounting Flange: 2.750 INCHES NOMINAL IN
  • Style Designator: ROUND FLUSH MTG
  • Material: PLASTIC
  • Overall Diameter: 3.500 INCHES NOMINAL IN
  • Color: UNABLE TO DECODE
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
Applications
  • Applications requiring Plastic construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-710-2758, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Triplett (bluffton) Corporation Dba Lfe Instruments. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6625-00-710-2758
Primary Part Number321T
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerTriplett (bluffton) Corporation Dba Lfe Instruments
StatusCANCELLED
Circuit Attachment Method and Quantity2 THREADED STUD
Meter Body Diameter Behind Mounting Flange2.750 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
MaterialPLASTIC
Overall Diameter3.500 INCHES NOMINAL IN
ColorUNABLE TO DECODE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Meter Depth Behind Mounting Flange0.937 INCHES NOMINAL IN
Movement TypeMOVING IRON VANE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Scale Division Quantity60 SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
Measurement Range+0.0 TO 300.0 VOLTS, AC SINGLE INDICATOR SINGLE RANGE
Mounting Bolt Circle Diameter3.960 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Circuit Attachment Method and Quantity2 THREADED STUD
Meter Body Diameter Behind Mounting Flange2.750 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
MaterialPLASTIC
Overall Diameter3.500 INCHES NOMINAL IN
ColorUNABLE TO DECODE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Meter Depth Behind Mounting Flange0.937 INCHES NOMINAL IN
Movement TypeMOVING IRON VANE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Scale Division Quantity60 SINGLE INDICATOR SINGLE RANGE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
No Item Name Available
6625-00-439-412311603840 INTERCHANGEABLE
Meter,arbitrary Scale
U S Army Tank Automotive Command Amsta-Im-Mm
6625-00-440-556910256-13 INTERCHANGEABLE
Ammeter
Triplett (bluffton) Corporation Dba Lfe Instruments
6625-00-553-1577 INTERCHANGEABLE
Ammeter
6625-00-731-7405321T0-500 INTERCHANGEABLE
Ammeter
Triplett (bluffton) Corporation Dba Lfe Instruments
6625-00-809-2800 INTERCHANGEABLE
Ammeter
6625-00-879-753061828-3 INTERCHANGEABLE
Meter,arbitrary Scale
Cvc Products Inc
6625-00-894-3215908-61 INTERCHANGEABLE
Ammeter
Jewell Instruments Llc
6625-01-294-7672TD08041-M1 INTERCHANGEABLE
Ammeter
Commander Nawc-Wd
Cross-Reference Index
Part NumberManufacturer
321T Triplett (bluffton) Corporation Dba Lfe Instruments (USA)
Related Parts
6625-00-811-0687SUCCESSOR
NO ITEM NAME AVAILABLE
6625-00-439-4123INTERCHANGEABLE
METER,ARBITRARY SCALE
11603840
6625-00-440-5569INTERCHANGEABLE
AMMETER
10256-13
6625-00-553-1577INTERCHANGEABLE
AMMETER
6625-00-731-7405INTERCHANGEABLE
AMMETER
321T0-500
6625-00-809-2800INTERCHANGEABLE
AMMETER
6625-00-879-7530INTERCHANGEABLE
METER,ARBITRARY SCALE
61828-3
6625-00-894-3215INTERCHANGEABLE
AMMETER
908-61
6625-01-294-7672INTERCHANGEABLE
AMMETER
TD08041-M1

Frequently Asked Questions

What is NSN 6625-00-710-2758?

NSN 6625-00-710-2758 is a Voltmeter, manufactured by Triplett (bluffton) Corporation Dba Lfe Instruments, classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-710-2758?

NSN 6625-00-710-2758 has 1 cross-referenced part number: 321T (Triplett (bluffton) Corporation Dba Lfe Instruments).

What NSN replaces 6625-00-710-2758?

There are 9 known substitutes for 6625-00-710-2758: 6625-00-811-0687, 6625-00-439-4123, 6625-00-440-5569 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 321T?

Key specifications for 321T: Circuit Attachment Method and Quantity: 2 THREADED STUD; Meter Body Diameter Behind Mounting Flange: 2.750 INCHES NOMINAL IN; Style Designator: ROUND FLUSH MTG; Material: PLASTIC. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-710-2758 still in active supply?

NSN 6625-00-710-2758 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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