PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

621-116Ammeter

Phaostron Instrument and Electronic Company · NSN 6625-00-007-2866 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-007-2866 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-007-2866. Primary manufacturer part number: 621-116.
Features
  • Ammeter — FSC 6625
  • Features Provided: EXTERNAL SHUNTING AND LUMINOUS SCALE MARKING AND MAGNETIC SHIELD AND ZERO ADJUSTER
  • Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
  • Power Source: EXTERNAL
  • Movement Suspension Method: JEWEL PIVOT BASE
  • Measurement Range: +0.0 TO 200.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-007-2866, 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 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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
NSN6625-00-007-2866
Primary Part Number621-116
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerPhaostron Instrument and Electronic Company
StatusACTIVE
Features ProvidedEXTERNAL SHUNTING AND LUMINOUS SCALE MARKING AND MAGNETIC SHIELD AND ZERO ADJUSTER
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 THREADED STUD
Power SourceEXTERNAL
Movement Suspension MethodJEWEL PIVOT BASE
Measurement Range+0.0 TO 200.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Environmental ProtectionSHOCK RESISTANT AND VIBRATION RESISTANT
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange1.600 INCHES MAXIMUM IN
Circuit Current for Which DesignedDC
FSC Application DataTEST SET,ELECT. EQUIP.
Special MarkingsSEALED DO NOT OPEN ON BACK OF METER
Meter Body Diameter Behind Mounting Flange2.210 INCHES MAXIMUM IN
ColorUNABLE TO DECODE
Indicator TypeDIAL W/POINTER
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Special Test FeaturesCONFORMS TO MIL-M-10304/5
Mounting Hole Diameter0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
MaterialSTEEL CORROSION RESISTING
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Furnished Items and QuantityNUT 5; WASHER 5
Style DesignatorROUND FLUSH MTG
Surface TreatmentENAMEL SEMIGLOSS
Installation DesignPANEL
Scale Division Quantity40 SINGLE INDICATOR SINGLE RANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeY
Weight0.7500 lbs
Cube0.0723 cu ft
Verified Substitutes 8
6625-00-332-6211SC-C-24420 SUCCESSOR
Multimeter
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6625-00-555-2264628 SUCCESSOR
Generator,signal
Keysight Technologies Inc
6625-00-730-8550628 SUCCESSOR
Lead,test
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
Meter,multiple Scale
5905-00-114-5438 INTERCHANGEABLE
Resistor,fixed,composition
6625-00-684-2821 INTERCHANGEABLE
Ammeter
6625-01-088-3096 INTERCHANGEABLE
Ammeter
4720-01-528-9647 INTERCHANGEABLE
Hose,nonmetallic
Cross-Reference Index
Part NumberManufacturer
621-116 Phaostron Instrument and Electronic Company (USA)
621 Phaostron Instrument and Electronic Company (USA)
628 Phaostron Instrument and Electronic Company (USA)
8030001523-1 Navcom Defense Electronics, Inc. (USA)
MR26W200DCUAR Phaostron Instrument and Electronic Company (USA)
Related Parts
6625-00-332-6211SUCCESSOR
MULTIMETER
SC-C-24420
6625-00-555-2264SUCCESSOR
GENERATOR,SIGNAL
628
6625-00-730-8550SUCCESSOR
LEAD,TEST
628
6625-00-964-2808SUCCESSOR
METER,MULTIPLE SCALE
5905-00-114-5438INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
6625-00-684-2821INTERCHANGEABLE
AMMETER
6625-01-088-3096INTERCHANGEABLE
AMMETER
4720-01-528-9647INTERCHANGEABLE
HOSE,NONMETALLIC

Frequently Asked Questions

What is NSN 6625-00-007-2866?

NSN 6625-00-007-2866 is a Ammeter, manufactured by Phaostron Instrument and Electronic Company, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-007-2866?

NSN 6625-00-007-2866 has 5 cross-referenced part numbers: 621-116 (Phaostron Instrument and Electronic Company), 621 (Phaostron Instrument and Electronic Company), 628 (Phaostron Instrument and Electronic Company), 8030001523-1 (Navcom Defense Electronics, Inc.), MR26W200DCUAR (Phaostron Instrument and Electronic Company).

What NSN replaces 6625-00-007-2866?

There are 8 known substitutes for 6625-00-007-2866: 6625-00-332-6211, 6625-00-555-2264, 6625-00-730-8550 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 621-116?

Key specifications for 621-116: Overall Length: 2.650 INCHES MAXIMUM IN; Features Provided: EXTERNAL SHUNTING AND LUMINOUS SCALE MARKING AND MAGNETIC SHIELD AND ZERO ADJUSTER; Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE; Circuit Attachment Method and Quantity: 2 THREADED STUD. 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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