PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1227-4310Ammeter

Simpson Electric Co Simpson Instruments Div · NSN 6625-00-116-1632 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-116-1632 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-116-1632. Primary manufacturer part number: 1227-4310.
Features
  • Ammeter — FSC 6625
  • Indicator Type: DIAL W/POINTER
  • Meter Body Diameter Behind Mounting Flange: 2.170 INCHES NOMINAL IN
  • Measurement Range: +0.0 TO 50.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
  • Meter Depth Behind Mounting Flange: 1.060 INCHES NOMINAL IN
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Sensitivity Rating: 90.0 MILLIVOLTS
  • Mounting Stud Length: 0.533 INCHES NOMINAL IN
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-116-1632, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-116-1632
Primary Part Number1227-4310
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSimpson Electric Co Simpson Instruments Div
StatusACTIVE
Indicator TypeDIAL W/POINTER
Meter Body Diameter Behind Mounting Flange2.170 INCHES NOMINAL IN
Measurement Range+0.0 TO 50.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange1.060 INCHES NOMINAL IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Sensitivity Rating90.0 MILLIVOLTS
Mounting Stud Length0.533 INCHES NOMINAL IN
Installation DesignPANEL
Scale Selection MethodSWITCH
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Circuit Construction TypeNONELECTRONIC
Mounting Facility Type and Quantity4 THREADED STUD(S)
Movement Suspension MethodJEWEL PIVOT BASE
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
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
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Panel for Which DesignedMAGNETIC
Movement TypeMOVING COIL, PERMANENT MAGNET
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Circuit Current for Which DesignedDC
Circuit Attachment Method and Quantity2 THREADED STUD
ColorUNABLE TO DECODE
FSC Application DataTEST SET ELECTRONIC
MaterialPLASTIC
Mounting Stud Diameter0.112 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight0.1000 lbs
Cube0.0010 cu ft
Verified Substitutes 12
4520-00-068-0294 INTERCHANGEABLE
Heating Element,electrical,nonim
6625-00-070-21664310 INTERCHANGEABLE
Wattmeter
Bird Electronic Corporation Div Bird Electronic Corp
3110-00-155-95601310MWI INTERCHANGEABLE
Bearing,ball,annular
Schatz Bearing Corporation Dba Schatz Bearing Corp
3110-00-156-1721 INTERCHANGEABLE
Bearing,ball,thrust
5330-00-291-640310014 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
3415-00-364-09906816 INTERCHANGEABLE
Grinding Machine,utility
Black and Decker Us Inc
3040-00-383-9339VE363A INTERCHANGEABLE
Lever,manual Control
Wisconsin Motors, Llc
6140-00-397-2665 INTERCHANGEABLE
Battery,storage
5305-00-723-51744310 INTERCHANGEABLE
Screw,shoulder
Roller Bearing Co of America, Inc Div Pic Design
4820-00-918-87104820-100-04-07 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Jackson Msc, Llc Dba Jackson Dishmachines
Cross-Reference Index
Part NumberManufacturer
1227-4310 Simpson Electric Co Simpson Instruments Div (USA)
1227-4310 Simpson Electric Company, Inc. (USA)
4310 Simpson Electric Company, Inc. (USA)
Related Parts
4520-00-068-0294INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
6625-00-070-2166INTERCHANGEABLE
WATTMETER
4310
3110-00-155-9560INTERCHANGEABLE
BEARING,BALL,ANNULAR
1310MWI
3110-00-156-1721INTERCHANGEABLE
BEARING,BALL,THRUST
5330-00-291-6403INTERCHANGEABLE
SEAL,PLAIN ENCASED
10014
3415-00-364-0990INTERCHANGEABLE
GRINDING MACHINE,UTILITY
6816
3040-00-383-9339INTERCHANGEABLE
LEVER,MANUAL CONTROL
VE363A
6140-00-397-2665INTERCHANGEABLE
BATTERY,STORAGE
5305-00-723-5174INTERCHANGEABLE
SCREW,SHOULDER
4310
4820-00-918-8710INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-100-04-07
6620-00-948-3749INTERCHANGEABLE
DETECTOR,SENSING,OI
4310
4530-01-003-4135INTERCHANGEABLE
NOZZLE,OIL BURNER,PRESSURE ATOMI

Frequently Asked Questions

What is NSN 6625-00-116-1632?

NSN 6625-00-116-1632 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 6625-00-116-1632?

NSN 6625-00-116-1632 has 3 cross-referenced part numbers: 1227-4310 (Simpson Electric Co Simpson Instruments Div), 1227-4310 (Simpson Electric Company, Inc.), 4310 (Simpson Electric Company, Inc.).

What NSN replaces 6625-00-116-1632?

There are 12 known substitutes for 6625-00-116-1632: 4520-00-068-0294, 6625-00-070-2166, 3110-00-155-9560 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1227-4310?

Key specifications for 1227-4310: Indicator Type: DIAL W/POINTER; Meter Body Diameter Behind Mounting Flange: 2.170 INCHES NOMINAL IN; Measurement Range: +0.0 TO 50.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE; Meter Depth Behind Mounting Flange: 1.060 INCHES NOMINAL IN. 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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