PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

321-HRMeter,null

Triplett (bluffton) Corporation Dba Lfe Instruments · NSN 6625-00-115-9344 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-115-9344 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-115-9344. Primary manufacturer part number: 321-HR.
Features
  • Meter,null — FSC 6625
  • Movement Suspension Method: JEWEL PIVOT BASE
  • Indicator Type: DIAL W/POINTER
  • Overall Diameter: 3.510 INCHES MAXIMUM IN
  • Meter Depth Behind Mounting Flange: 1.281 INCHES NOMINAL IN
  • Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE
  • Pointer Color: BLACK SINGLE INDICATOR ALL RANGES
  • Installation Design: PANEL
Applications
  • Applications requiring Steel construction
General Description

The Meter,null, cataloged under National Stock Number 6625-00-115-9344, 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 28 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-115-9344
Primary Part Number321-HR
Item NameMeter,null
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerTriplett (bluffton) Corporation Dba Lfe Instruments
StatusACTIVE
Movement Suspension MethodJEWEL PIVOT BASE
Indicator TypeDIAL W/POINTER
Overall Diameter3.510 INCHES MAXIMUM IN
Meter Depth Behind Mounting Flange1.281 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Pointer ColorBLACK SINGLE INDICATOR ALL RANGES
Installation DesignPANEL
Reliability IndicatorESTABLISHED
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Features ProvidedZERO ADJUSTER
MaterialSTEEL
ColorUNABLE TO DECODE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
FSC Application DataELECTRICAL AND ELECTRONIC PROPERTIES MEASURING AND TESTING INSTRUMENTS
Meter Body Diameter Behind Mounting Flange2.800 INCHES NOMINAL IN
Sensitivity Rating50.0 MICROAMPERES
Nuclear Hardness Critical FeatureNONHARDENED
Style DesignatorROUND FLUSH MTG
Environmental ProtectionSHOCK RESISTANT AND VIBRATION RESISTANT
Surface TreatmentENAMEL
Furnished Items and QuantityNUT 5; WASHER 7
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Movement TypeMOVING COIL, PERMANENT MAGNET
Dielectric Withstanding Voltage in Volts1500.0
Circuit Current for Which DesignedDC
Scale Division Quantity20 SINGLE INDICATOR ALL RANGES
Dial Scale Marking ColorBLACK SINGLE INDICATOR ALL RANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeY
Verified Substitutes 12
6625-01-128-7574321-HR-0 TO 25VAC RECTIFIED SUCCESSOR
Voltmeter
Triplett (bluffton) Corporation Dba Lfe Instruments
6625-00-073-998225-801860-3 INTERCHANGEABLE
Voltmeter
General Dynamics Mission Systems, Inc.
6625-00-091-9968557955-1 INTERCHANGEABLE
Meter,special Scale
Raytheon Company
6625-00-231-88062836293 INTERCHANGEABLE
Voltmeter
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6625-00-357-18021987055 INTERCHANGEABLE
Voltmeter
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6625-00-489-6275 INTERCHANGEABLE
Voltmeter
6625-00-618-2459MTPA7-W/ZP10032126/INSTALLED INTERCHANGEABLE
Meter,electrical Frequency
Thermo Eberline Llc Dba Thermo Fisher Scientific Div Thermo Fisher Scientific
6625-00-729-6723503-4 INTERCHANGEABLE
Voltmeter
Jewell Instruments Llc
6625-00-763-7737245-1172P1 INTERCHANGEABLE
Ammeter
Raytheon Company Div Corp
6625-00-811-4424 INTERCHANGEABLE
Ammeter
Cross-Reference Index
Part NumberManufacturer
321-HR Triplett (bluffton) Corporation Dba Lfe Instruments (USA)
CEL61070 Croft Electrical Laboratories (USA)
Related Parts
6625-01-128-7574SUCCESSOR
VOLTMETER
321-HR-0 TO 25VAC RECTIFIED
6625-00-073-9982INTERCHANGEABLE
VOLTMETER
25-801860-3
6625-00-091-9968INTERCHANGEABLE
METER,SPECIAL SCALE
557955-1
6625-00-231-8806INTERCHANGEABLE
VOLTMETER
2836293
6625-00-357-1802INTERCHANGEABLE
VOLTMETER
1987055
6625-00-489-6275INTERCHANGEABLE
VOLTMETER
6625-00-618-2459INTERCHANGEABLE
METER,ELECTRICAL FREQUENCY
MTPA7-W/ZP10032126/INSTALLED
6625-00-729-6723INTERCHANGEABLE
VOLTMETER
503-4
6625-00-763-7737INTERCHANGEABLE
AMMETER
245-1172P1
6625-00-811-4424INTERCHANGEABLE
AMMETER
6625-00-930-3889INTERCHANGEABLE
METER,AUDIO LEVEL
10211174
6625-00-995-3784INTERCHANGEABLE
METER,ARBITRARY SCALE
2486680

Frequently Asked Questions

What is NSN 6625-00-115-9344?

NSN 6625-00-115-9344 is a Meter,null, manufactured by Triplett (bluffton) Corporation Dba Lfe Instruments, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-115-9344?

NSN 6625-00-115-9344 has 2 cross-referenced part numbers: 321-HR (Triplett (bluffton) Corporation Dba Lfe Instruments), CEL61070 (Croft Electrical Laboratories).

What NSN replaces 6625-00-115-9344?

There are 12 known substitutes for 6625-00-115-9344: 6625-01-128-7574, 6625-00-073-9982, 6625-00-091-9968 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 321-HR?

Key specifications for 321-HR: Movement Suspension Method: JEWEL PIVOT BASE; Indicator Type: DIAL W/POINTER; Overall Diameter: 3.510 INCHES MAXIMUM IN; Meter Depth Behind Mounting Flange: 1.281 INCHES NOMINAL IN. 30 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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