PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-A-775649Ammeter

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 6625-01-065-7300 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-065-7300 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-065-7300. Primary manufacturer part number: SM-A-775649.
Features
  • Ammeter — FSC 6625
  • Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S)
  • Dielectric Withstanding Voltage in Volts: 1500.0
  • Power Source: EXTERNAL
  • Circuit Current for Which Designed: DC
  • Meter Depth Behind Mounting Flange: 1.000 INCHES MAXIMUM IN
  • Sensitivity Rating: 50.0 MICROAMPERES
  • Mounting Arrangement Style: FOUR HOLE/STUD RECTANGULAR/SQUARE
Applications
  • Applications requiring Steel construction
General Description

The Ammeter, cataloged under National Stock Number 6625-01-065-7300, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-01-065-7300
Primary Part NumberSM-A-775649
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Dielectric Withstanding Voltage in Volts1500.0
Power SourceEXTERNAL
Circuit Current for Which DesignedDC
Meter Depth Behind Mounting Flange1.000 INCHES MAXIMUM IN
Sensitivity Rating50.0 MICROAMPERES
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Scale Division Quantity10 SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Environmental ProtectionDUSTPROOF AND SHOCK RESISTANT AND VIBRATION RESISTANT
Panel for Which DesignedMAGNETIC OR NONMAGNETIC
Indicator TypeDIAL W/POINTER
Movement Suspension MethodJEWEL PIVOT BASE
Meter Body Diameter Behind Mounting Flange1.510 INCHES MAXIMUM IN
Accuracy in Percent-3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Nuclear Hardness Critical FeatureNONHARDENED
Surface TreatmentENAMEL SEMIGLOSS
Movement TypeELECTROSTATIC
MaterialSTEEL
Measurement Range+0.0 TO 50.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
FSC Application DataTEST SET ELECTRONIC
Style DesignatorRECTANGULAR FLUSH MTG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJZ
Weight2.0000 lbs
Cube0.6047 cu ft
Verified Substitutes 2
5120-00-498-1785268527 INTERCHANGEABLE
Holding Tool,retain
Honeywell International Inc. Div Aerospace - Torrance
5962-01-083-5992 INTERCHANGEABLE
Microcircuit,digital
Cross-Reference Index
Part NumberManufacturer
135-282 Jewell Instruments Llc (USA)
618-E611 Phaostron Instrument and Electronic Company (USA)
SM-A-775649 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
SM-A-775649 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
SM-A-775649 Litton Systems Inc Guidance and Control Systems Div (USA)
SM-A-775649 Phaostron Instrument and Electronic Company (USA)
268527 General Motors Llc Dba General Motors (USA)
Related Parts
5120-00-498-1785INTERCHANGEABLE
HOLDING TOOL,RETAIN
268527
5962-01-083-5992INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 6625-01-065-7300?

NSN 6625-01-065-7300 is a Ammeter, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-065-7300?

NSN 6625-01-065-7300 has 7 cross-referenced part numbers: 135-282 (Jewell Instruments Llc), 618-E611 (Phaostron Instrument and Electronic Company), SM-A-775649 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), SM-A-775649 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), SM-A-775649 (Litton Systems Inc Guidance and Control Systems Div) and 2 more.

What NSN replaces 6625-01-065-7300?

There are 2 known substitutes for 6625-01-065-7300: 5120-00-498-1785, 5962-01-083-5992. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-A-775649?

Key specifications for SM-A-775649: Overall Length: 1.625 INCHES MAXIMUM IN; Overall Width: 1.734 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN; Special Features: RUGGEDIZED; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S). 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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