PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

05400Ammeter

Simpson Electric Company, Inc. · NSN 6625-00-813-6855 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-813-6855 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-813-6855. Primary manufacturer part number: 05400.
Features
  • Ammeter — FSC 6625
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Mounting Facility Type and Quantity: 4 THREADED STUD(S)
  • Nuclear Hardness Critical Feature: NONHARDENED
  • Color: UNABLE TO DECODE
  • Style Designator: RECTANGULAR FLUSH MTG
  • Material: PLASTIC
  • Meter Depth Behind Mounting Flange: 1.000 INCHES NOMINAL IN
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-813-6855, 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 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-00-813-6855
Primary Part Number05400
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSimpson Electric Company, Inc.
StatusACTIVE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity4 THREADED STUD(S)
Nuclear Hardness Critical FeatureNONHARDENED
ColorUNABLE TO DECODE
Style DesignatorRECTANGULAR FLUSH MTG
MaterialPLASTIC
Meter Depth Behind Mounting Flange1.000 INCHES NOMINAL IN
Meter Body Diameter Behind Mounting Flange2.750 INCHES NOMINAL IN
Mounting Stud Diameter0.138 INCHES NOMINAL IN
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Mounting Stud Length1.260 INCHES MAXIMUM IN
Measurement Range+0.0 TO 50.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Sensitivity Rating50.0 MILLIVOLTS
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Indicator TypeDIAL W/POINTER
Installation DesignPANEL
Circuit Construction TypeELECTRONIC, SOLID STATE
Circuit Attachment Method and Quantity2 BINDING POST
Center to Center Distance Between Mounting Facilities Parallel to Width4.000 INCHES NOMINAL IN
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Panel for Which DesignedNONMAGNETIC
Circuit Current for Which DesignedDC
Center to Center Distance Between Mounting Facilities Parallel to Length3.560 INCHES NOMINAL IN
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Weight1.0000 lbs
Cube0.0370 cu ft
Verified Substitutes 8
6625-00-060-04592960 SUCCESSOR
Voltmeter
Kay Elemetrics Corporation
6625-00-720-2246420-030 SUCCESSOR
Voltmeter
Triplett (bluffton) Corporation Dba Lfe Instruments
Voltmeter
Electrowriter Trans
Generator,function,electronic Te
5136-00-189-31655136-00-189-3165 INTERCHANGEABLE
Die,thread Cutting
General Services Administration Federal Supply Service
5930-01-593-104505400 INTERCHANGEABLE
Switch,rotary
Ucom, Inc.
5140-01-618-7979J05400 INTERCHANGEABLE
Tool Box,portable
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
0540 Simpson Electric Company, Inc. (USA)
29-0540 Simpson Electric Company, Inc. (USA)
05400 PRIMARY Simpson Electric Company, Inc. (USA)
29 Simpson Electric Company, Inc. (USA)
Related Parts
6625-00-060-0459SUCCESSOR
VOLTMETER
2960
6625-00-720-2246SUCCESSOR
VOLTMETER
420-030
6625-00-777-2108SUCCESSOR
VOLTMETER
5895-01-017-7020SUCCESSOR
ELECTROWRITER TRANS
6625-01-421-1761SUCCESSOR
GENERATOR,FUNCTION,ELECTRONIC TE
5136-00-189-3165INTERCHANGEABLE
DIE,THREAD CUTTING
5136-00-189-3165
5930-01-593-1045INTERCHANGEABLE
SWITCH,ROTARY
05400
5140-01-618-7979INTERCHANGEABLE
TOOL BOX,PORTABLE
J05400

Frequently Asked Questions

What is NSN 6625-00-813-6855?

NSN 6625-00-813-6855 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 6625-00-813-6855?

NSN 6625-00-813-6855 has 4 cross-referenced part numbers: 0540 (Simpson Electric Company, Inc.), 29-0540 (Simpson Electric Company, Inc.), 05400 (Simpson Electric Company, Inc.), 29 (Simpson Electric Company, Inc.).

What NSN replaces 6625-00-813-6855?

There are 8 known substitutes for 6625-00-813-6855: 6625-00-060-0459, 6625-00-720-2246, 6625-00-777-2108 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 05400?

Key specifications for 05400: Overall Length: 1.600 INCHES NOMINAL IN; Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE; Mounting Facility Type and Quantity: 4 THREADED STUD(S); Nuclear Hardness Critical Feature: NONHARDENED. 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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