PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1227-3AMPAmmeter

Simpson Electric Company, Inc. · NSN 6625-00-071-8381 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-071-8381 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-071-8381. Primary manufacturer part number: 1227-3AMP.
Features
  • Ammeter — FSC 6625
  • Power Source: EXTERNAL
  • Scale Selection Method: TERMINAL
  • Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE
  • Circuit Construction Type: NONELECTRONIC
  • Movement Suspension Method: JEWEL PIVOT BASE
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
  • Measurement Range: +0.0 TO 3.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Applications
  • Applications requiring Plastic Phenolic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-071-8381, 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 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-071-8381
Primary Part Number1227-3AMP
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSimpson Electric Company, Inc.
StatusCANCELLED
Power SourceEXTERNAL
Scale Selection MethodTERMINAL
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Circuit Construction TypeNONELECTRONIC
Movement Suspension MethodJEWEL PIVOT BASE
Circuit Attachment Method and Quantity2 THREADED STUD
Measurement Range+0.0 TO 3.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity4 THREADED STUD(S)
Features ProvidedZERO ADJUSTER
Meter Body Diameter Behind Mounting Flange2.170 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.880 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.880 INCHES NOMINAL IN
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
FSC Application DataTEST SET,ELECT. EQUIP.
Movement TypeMOVING COIL, PERMANENT MAGNET
Sensitivity Rating1000.0 OHMS PER VOLT
MaterialPLASTIC PHENOLIC
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 Length0.540 INCHES NOMINAL IN
Style DesignatorRECTANGULAR FLUSH MTG
Indicator TypeDIAL W/POINTER
Scale Division Quantity60 SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
ColorUNABLE TO DECODE
Meter Depth Behind Mounting Flange1.760 INCHES NOMINAL IN
Panel for Which DesignedNONMAGNETIC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight0.5600 lbs
Cube0.0268 cu ft
Verified Substitutes 12
No Item Name Available
3120-00-216-93602470 INTERCHANGEABLE
Bearing Assembly
Northrop Grumman Systems Corporation Div Marine Systems
5120-00-221-1068 INTERCHANGEABLE
Vise,pipe
5930-00-251-75958386K101 INTERCHANGEABLE
Switch,toggle
Eaton Electrical Inc. Dba Cuttler Hmmer Cmrcl Cntrls Div Div Vehicle Controls Business Unit
5940-00-505-770434132 INTERCHANGEABLE
Splice,conductor
Te Connectivity Corporation
5310-00-522-65140-2470 INTERCHANGEABLE
Washer,flat
Ametek Inc Lamb Electric Div
3030-00-528-4608 INTERCHANGEABLE
Belt,v
4720-00-540-173034132 INTERCHANGEABLE
Hose Assembly,nonmetallic
Dressta North America Ltd
3030-00-555-90502470 INTERCHANGEABLE
Belts,v,matched Set
Gates Corporation
5950-00-648-216116353 INTERCHANGEABLE
Reactor
Freed Transformer Co
Cross-Reference Index
Part NumberManufacturer
1227-3AMP Simpson Electric Company, Inc. (USA)
2470 Simpson Electric Company, Inc. (USA)
124410 L3harris Technologies, Inc. (USA)
918-2503 Allied Electronics Inc (USA)
02470 Simpson Electric Company, Inc. (USA)
34132 Edo (USA)
Related Parts
6625-00-070-2172SUCCESSOR
NO ITEM NAME AVAILABLE
3120-00-216-9360INTERCHANGEABLE
BEARING ASSEMBLY
2470
5120-00-221-1068INTERCHANGEABLE
VISE,PIPE
5930-00-251-7595INTERCHANGEABLE
SWITCH,TOGGLE
8386K101
5940-00-505-7704INTERCHANGEABLE
SPLICE,CONDUCTOR
34132
5310-00-522-6514INTERCHANGEABLE
WASHER,FLAT
0-2470
3030-00-528-4608INTERCHANGEABLE
BELT,V
4720-00-540-1730INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
34132
3030-00-555-9050INTERCHANGEABLE
BELTS,V,MATCHED SET
2470
5950-00-648-2161INTERCHANGEABLE
REACTOR
16353
5360-00-765-2874INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
2-470
5930-01-058-4154INTERCHANGEABLE
SWITCH,ROTARY
24081

Frequently Asked Questions

What is NSN 6625-00-071-8381?

NSN 6625-00-071-8381 is a Ammeter, manufactured by Simpson Electric Company, Inc., classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-071-8381?

NSN 6625-00-071-8381 has 6 cross-referenced part numbers: 1227-3AMP (Simpson Electric Company, Inc.), 2470 (Simpson Electric Company, Inc.), 124410 (L3harris Technologies, Inc.), 918-2503 (Allied Electronics Inc), 02470 (Simpson Electric Company, Inc.) and 1 more.

What NSN replaces 6625-00-071-8381?

There are 12 known substitutes for 6625-00-071-8381: 6625-00-070-2172, 3120-00-216-9360, 5120-00-221-1068 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1227-3AMP?

Key specifications for 1227-3AMP: Overall Height: 2.470 INCHES NOMINAL IN; Power Source: EXTERNAL; Scale Selection Method: TERMINAL; Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-071-8381 still in active supply?

NSN 6625-00-071-8381 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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