PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1212-02431Ammeter

Simpson Electric Co Simpson Instruments Div · NSN 6625-00-387-5322 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-387-5322 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-387-5322. Primary manufacturer part number: 1212-02431.
Features
  • Ammeter — FSC 6625
  • Nuclear Hardness Critical Feature: NONHARDENED
  • FSC Application Data: TEST SET,ELECT. EQUIP.
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.320 INCHES NOMINAL IN
  • Style Designator: RECTANGULAR FLUSH MTG
  • Mounting Stud Diameter: 0.112 INCHES NOMINAL IN
  • Circuit Current for Which Designed: DC
  • Installation Design: PANEL
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-387-5322, 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 Co Simpson Instruments Div. Government technical data includes 27 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-387-5322
Primary Part Number1212-02431
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSimpson Electric Co Simpson Instruments Div
StatusACTIVE
Nuclear Hardness Critical FeatureNONHARDENED
FSC Application DataTEST SET,ELECT. EQUIP.
Center to Center Distance Between Mounting Facilities Parallel to Length1.320 INCHES NOMINAL IN
Style DesignatorRECTANGULAR FLUSH MTG
Mounting Stud Diameter0.112 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
Installation DesignPANEL
Features ProvidedMAGNETIC SHIELD AND ZERO ADJUSTER
Panel for Which DesignedMAGNETIC OR NONMAGNETIC
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange1.000 INCHES NOMINAL IN
ColorUNABLE TO DECODE
Movement TypeMOVING COIL, PERMANENT MAGNET
Circuit Construction TypeNONELECTRONIC
MaterialPLASTIC
Movement Suspension MethodJEWEL PIVOT BASE
Meter Body Diameter Behind Mounting Flange1.500 INCHES NOMINAL IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Power SourceEXTERNAL
Environmental ProtectionSHOCK RESISTANT AND VIBRATION RESISTANT
Mounting Facility Type and Quantity4 THREADED STUD(S)
Measurement Range+0.0 TO 1.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 THREADED STUD
Indicator TypeDIAL W/POINTER
Scale Graduation TypeNONLINEAR SINGLE INDICATOR SINGLE RANGE
Mounting Stud Length0.533 INCHES NOMINAL IN
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-028-3966 (09541)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeY
Verified Substitutes 8
6625-00-028-396609541 SUCCESSOR
Voltmeter
Simpson Electric Company, Inc.
5999-00-212-355569-702 SUCCESSOR
Heat Sink,electrical-Electronic
Department of Defense Project Manager-Mobile Electric Power
Voltmeter
6625-00-470-84321212-09540 SUCCESSOR
Voltmeter
Simpson Electric Company, Inc.
Ammeter
6625-01-321-288706163 SUCCESSOR
Ammeter
Simpson Electric Company, Inc.
6145-00-299-6222NE16834T INTERCHANGEABLE
Braid,wire
New England Wire Technologies Corp.
6625-00-974-6175599-109A INTERCHANGEABLE
Meter,special Scale
Bae Systems Information & Electronic Systems Integration Inc.
Cross-Reference Index
Part NumberManufacturer
1212-02431 Simpson Electric Co Simpson Instruments Div (USA)
1212-02431 Simpson Electric Company, Inc. (USA)
1212 Simpson Electric Co Simpson Instruments Div (USA)
Related Parts
SUCCESSOR 6625-00-028-3966 Voltmeter · 09541
5999-00-212-3555SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
69-702
6625-00-442-0105SUCCESSOR
VOLTMETER
6625-00-470-8432SUCCESSOR
VOLTMETER
1212-09540
6625-00-926-7659SUCCESSOR
AMMETER
6625-01-321-2887SUCCESSOR
AMMETER
06163
6145-00-299-6222INTERCHANGEABLE
BRAID,WIRE
NE16834T
6625-00-974-6175INTERCHANGEABLE
METER,SPECIAL SCALE
599-109A

Frequently Asked Questions

What is NSN 6625-00-387-5322?

NSN 6625-00-387-5322 is a Ammeter, manufactured by Simpson Electric Co Simpson Instruments Div, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-387-5322?

NSN 6625-00-387-5322 has 3 cross-referenced part numbers: 1212-02431 (Simpson Electric Co Simpson Instruments Div), 1212-02431 (Simpson Electric Company, Inc.), 1212 (Simpson Electric Co Simpson Instruments Div).

What NSN replaces 6625-00-387-5322?

There are 8 known substitutes for 6625-00-387-5322: 6625-00-028-3966, 5999-00-212-3555, 6625-00-442-0105 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1212-02431?

Key specifications for 1212-02431: Nuclear Hardness Critical Feature: NONHARDENED; FSC Application Data: TEST SET,ELECT. EQUIP.; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.320 INCHES NOMINAL IN; Style Designator: RECTANGULAR FLUSH MTG. 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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