PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A900209Ammeter

Master Control Systems Inc · NSN 6625-01-238-2051 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-238-2051 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-238-2051. Primary manufacturer part number: A900209.
Features
  • Ammeter — FSC 6625
  • Circuit Current for Which Designed: DC
  • Meter Body Diameter Behind Mounting Flange: 2.690 INCHES NOMINAL IN
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Installation Design: PANEL
  • Indicator Type: DIAL W/POINTER
  • Scale Division Quantity: 50 SINGLE INDICATOR SINGLE RANGE
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-01-238-2051, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Master Control Systems Inc. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN6625-01-238-2051
Primary Part NumberA900209
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerMaster Control Systems Inc
StatusACTIVE
Circuit Current for Which DesignedDC
Meter Body Diameter Behind Mounting Flange2.690 INCHES NOMINAL IN
Movement TypeMOVING COIL, PERMANENT MAGNET
Installation DesignPANEL
Indicator TypeDIAL W/POINTER
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Mounting Stud Length0.500 INCHES NOMINAL IN
Meter Depth Behind Mounting Flange1.340 INCHES NOMINAL IN
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Panel for Which DesignedMAGNETIC OR NONMAGNETIC
Scale Selection MethodTERMINAL
Style DesignatorRECTANGULAR FLUSH MTG
MaterialPLASTIC
Nuclear Hardness Critical FeatureNONHARDENED
Surface TreatmentPAINT
FSC Application DataTEST SET,ELECT. EQUIP.
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Measurement Range+0.0 TO 1.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Mounting Stud Diameter0.138 INCHES NOMINAL IN
Circuit Attachment Method and Quantity2 THREADED STUD
Movement Suspension MethodJEWEL PIVOT BASE
Power SourceEXTERNAL
Circuit Construction TypeNONELECTRONIC
Mounting Facility Type and Quantity4 THREADED STUD(S)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJF
Weight1.0000 lbs
Cube0.1040 cu ft
Verified Substitutes 12
3455-00-254-8470C208 INTERCHANGEABLE
Cutter,milling,concave
F & D Tool Co Inc
5895-00-404-1342103954 INTERCHANGEABLE
Cover,electronic Communication E
Astronautics Corporation of America
5340-00-447-356817565 INTERCHANGEABLE
Clevis,rod End
Komatsu America Corporation
5962-01-019-8646 INTERCHANGEABLE
Microcircuit,digital
5310-01-170-831917565 INTERCHANGEABLE
Washer,special
Astronautics Corporation of America
3020-01-212-767817565 INTERCHANGEABLE
Pulley,flat
Blako Inc. Dba Blakeslee
6680-01-245-1278 INTERCHANGEABLE
Module,electronic
2530-01-319-083317565 INTERCHANGEABLE
Piston,hydraulic Brake,master Cy
Jacobs Mfg Co the
3040-01-358-869217565 INTERCHANGEABLE
Gearshaft,multiple Gears
New Venture Gear Inc New Process Gear Div
3030-01-373-843417565 INTERCHANGEABLE
Belt,v
Gates Corporation
Cross-Reference Index
Part NumberManufacturer
A900209 PRIMARY Master Control Systems Inc (USA)
2124 Simpson Electric Company, Inc. (USA)
17565 Simpson Electric Company, Inc. (USA)
Related Parts
3455-00-254-8470INTERCHANGEABLE
CUTTER,MILLING,CONCAVE
C208
5895-00-404-1342INTERCHANGEABLE
COVER,ELECTRONIC COMMUNICATION E
103954
5340-00-447-3568INTERCHANGEABLE
CLEVIS,ROD END
17565
5962-01-019-8646INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5310-01-170-8319INTERCHANGEABLE
WASHER,SPECIAL
17565
3020-01-212-7678INTERCHANGEABLE
PULLEY,FLAT
17565
6680-01-245-1278INTERCHANGEABLE
MODULE,ELECTRONIC
2530-01-319-0833INTERCHANGEABLE
PISTON,HYDRAULIC BRAKE,MASTER CY
17565
3040-01-358-8692INTERCHANGEABLE
GEARSHAFT,MULTIPLE GEARS
17565
3030-01-373-8434INTERCHANGEABLE
BELT,V
17565
4820-01-422-3184INTERCHANGEABLE
VALVE,BALL
17565
5210-01-430-5113INTERCHANGEABLE
GAGE,TIRE PRESSURE
17565

Frequently Asked Questions

What is NSN 6625-01-238-2051?

NSN 6625-01-238-2051 is a Ammeter, manufactured by Master Control Systems Inc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-238-2051?

NSN 6625-01-238-2051 has 3 cross-referenced part numbers: A900209 (Master Control Systems Inc), 2124 (Simpson Electric Company, Inc.), 17565 (Simpson Electric Company, Inc.).

What NSN replaces 6625-01-238-2051?

There are 12 known substitutes for 6625-01-238-2051: 3455-00-254-8470, 5895-00-404-1342, 5340-00-447-3568 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A900209?

Key specifications for A900209: Circuit Current for Which Designed: DC; Overall Length: 2.700 INCHES NOMINAL IN; Meter Body Diameter Behind Mounting Flange: 2.690 INCHES NOMINAL IN; Movement Type: MOVING COIL, PERMANENT MAGNET. 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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