PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

17403Ammeter

Simpson Electric Company, Inc. · NSN 6625-01-308-8631 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-308-8631 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-308-8631. Primary manufacturer part number: 17403.
Features
  • Ammeter — FSC 6625
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.880 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.880 INCHES NOMINAL IN
  • Panel for Which Designed: MAGNETIC OR NONMAGNETIC
  • Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
  • Sensitivity Rating: 3.0 MILLIAMPERES
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Installation Design: PANEL
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-01-308-8631, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Simpson Electric Company, Inc.. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-01-308-8631
Primary Part Number17403
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSimpson Electric Company, Inc.
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Width1.880 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.880 INCHES NOMINAL IN
Panel for Which DesignedMAGNETIC OR NONMAGNETIC
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Sensitivity Rating3.0 MILLIAMPERES
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Meter Body Diameter Behind Mounting Flange2.160 INCHES NOMINAL IN
Indicator TypeDIAL W/POINTER
Mounting Stud Length0.530 INCHES NOMINAL IN
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Scale Division Quantity60 SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
Features ProvidedKNIFE EDGE POINTER AND MAGNETIC SHIELD AND ZERO ADJUSTER
Supplementary Features0.0166 OHMS RES
Scale Selection MethodTERMINAL
Circuit Construction TypeNONELECTRONIC
Nuclear Hardness Critical FeatureNONHARDENED
Style DesignatorRECTANGULAR FLUSH MTG
FSC Application DataTEST SET,ELECT. EQUIP.
Measurement Range+0.0 TO 3.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
MaterialPLASTIC
Mounting Facility Type and Quantity4 THREADED STUD(S)
Mounting Stud Diameter0.112 INCHES NOMINAL IN
Power SourceEXTERNAL
Circuit Attachment Method and Quantity2 THREADED STUD
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange1.340 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.5850 lbs
Cube0.0253 cu ft
Verified Substitutes 11
5999-00-169-3853374763-1 INTERCHANGEABLE
Contact,electrical
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
6150-00-487-303817403 INTERCHANGEABLE
Cable Assembly,power,electrical
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
9540-00-528-8755 INTERCHANGEABLE
Beam,structural
9540-00-838-1774 INTERCHANGEABLE
Beam,structural
3030-00-865-2700 INTERCHANGEABLE
Belt,v
5950-01-090-8018989112-13B INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
3040-01-215-230417403 INTERCHANGEABLE
Gearshaft,spur
Dana Commercial Vehicle Products, Llc
6625-01-237-704117403 INTERCHANGEABLE
Ammeter
Simpson Co Inc
2990-01-242-3013419 490 70 45 INTERCHANGEABLE
Cap Assembly,protective,muffler-
Daimler Truck North America Llc
6515-01-585-6363400440 INTERCHANGEABLE
Cleaner,wound,medical
B. Braun Medical Inc
Cross-Reference Index
Part NumberManufacturer
2122-17403 Simpson Electric Company, Inc. (USA)
2122 0TO3ADC Simpson Electric Company, Inc. (USA)
17403 PRIMARY Simpson Electric Company, Inc. (USA)
Related Parts
5999-00-169-3853INTERCHANGEABLE
CONTACT,ELECTRICAL
374763-1
6150-00-487-3038INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
17403
9540-00-528-8755INTERCHANGEABLE
BEAM,STRUCTURAL
9540-00-838-1774INTERCHANGEABLE
BEAM,STRUCTURAL
3030-00-865-2700INTERCHANGEABLE
BELT,V
5950-01-090-8018INTERCHANGEABLE
COIL,RADIO FREQUENCY
989112-13B
3040-01-215-2304INTERCHANGEABLE
GEARSHAFT,SPUR
17403
6625-01-237-7041INTERCHANGEABLE
AMMETER
17403
2990-01-242-3013INTERCHANGEABLE
CAP ASSEMBLY,PROTECTIVE,MUFFLER-
419 490 70 45
6515-01-585-6363INTERCHANGEABLE
CLEANER,WOUND,MEDICAL
400440
5975-01-646-5875INTERCHANGEABLE
CHASSIS,ELECTRICAL-ELECTRONIC EQ
17403

Frequently Asked Questions

What is NSN 6625-01-308-8631?

NSN 6625-01-308-8631 is a Ammeter, manufactured by Simpson Electric Company, Inc., classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-308-8631?

NSN 6625-01-308-8631 has 3 cross-referenced part numbers: 2122-17403 (Simpson Electric Company, Inc.), 2122 0TO3ADC (Simpson Electric Company, Inc.), 17403 (Simpson Electric Company, Inc.).

What NSN replaces 6625-01-308-8631?

There are 11 known substitutes for 6625-01-308-8631: 5999-00-169-3853, 6150-00-487-3038, 9540-00-528-8755 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 17403?

Key specifications for 17403: Center to Center Distance Between Mounting Facilities Parallel to Width: 1.880 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.880 INCHES NOMINAL IN; Panel for Which Designed: MAGNETIC OR NONMAGNETIC; Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE. 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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