PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

534437-1Ammeter

Raytheon Company Dba Raytheon · NSN 6625-00-003-2993 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-003-2993 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-003-2993. Primary manufacturer part number: 534437-1.
Features
  • Ammeter — FSC 6625
  • Mounting Stud Diameter: 0.112 INCHES NOMINAL IN
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
  • Measurement Range: +0.0 TO 60.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
  • Scale Selection Method: TERMINAL
  • Power Source: EXTERNAL
  • Circuit Construction Type: NONELECTRONIC
  • Scale Graduation Type: LINEAR SINGLE INDICATOR SINGLE RANGE
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-003-2993, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Raytheon Company Dba Raytheon. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-003-2993
Primary Part Number534437-1
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Mounting Stud Diameter0.112 INCHES NOMINAL IN
Circuit Attachment Method and Quantity2 THREADED STUD
Measurement Range+0.0 TO 60.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Scale Selection MethodTERMINAL
Power SourceEXTERNAL
Circuit Construction TypeNONELECTRONIC
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Features ProvidedEXTERNAL SHUNTING AND MAGNETIC SHIELD AND ZERO ADJUSTER
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity4 THREADED STUD(S)
Movement Suspension MethodJEWEL PIVOT BASE
FSC Application DataTEST SET,ELECT. EQUIP.
Nuclear Hardness Critical FeatureNONHARDENED
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Panel for Which DesignedMAGNETIC OR NONMAGNETIC
Special Test FeaturesCONFORMS TO ANSI C39.1-1964
Indicator TypeDIAL W/POINTER
ColorUNABLE TO DECODE
Center to Center Distance Between Mounting Facilities Parallel to Length2.250 INCHES NOMINAL IN
Style DesignatorRECTANGULAR FLUSH MTG
Meter Body Diameter Behind Mounting Flange2.790 INCHES MAXIMUM IN
MaterialPLASTIC
Supplementary Features1000 OHMS MIN INTERNAL RESISTANCE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Circuit Current for Which DesignedDC
Environmental ProtectionHUMIDITY PROOF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeZN
Weight0.6900 lbs
Cube0.0521 cu ft
Verified Substitutes 3
6145-00-052-4764UL62S06BCK3/12SBR/NRSBRNR SUCCESSOR
Cable,power,electrical
Underwriters Laboratories Inc
6625-00-003-2991534443-1 INTERCHANGEABLE
Voltmeter
Raytheon Company Dba Raytheon
6625-01-026-78908752 INTERCHANGEABLE
Wattmeter
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
Cross-Reference Index
Part NumberManufacturer
534437-1 PRIMARY Raytheon Company Dba Raytheon (USA)
534437-1 U S Dept of Transportation Federal Aviation Administration (USA)
2123 Simpson Electric Company, Inc. (USA)
Related Parts
6145-00-052-4764SUCCESSOR
CABLE,POWER,ELECTRICAL
UL62S06BCK3/12SBR/NRSBRNR
6625-00-003-2991INTERCHANGEABLE
VOLTMETER
534443-1
6625-01-026-7890INTERCHANGEABLE
WATTMETER
8752

Frequently Asked Questions

What is NSN 6625-00-003-2993?

NSN 6625-00-003-2993 is a Ammeter, manufactured by Raytheon Company Dba Raytheon, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-003-2993?

NSN 6625-00-003-2993 has 3 cross-referenced part numbers: 534437-1 (Raytheon Company Dba Raytheon), 534437-1 (U S Dept of Transportation Federal Aviation Administration), 2123 (Simpson Electric Company, Inc.).

What NSN replaces 6625-00-003-2993?

There are 3 known substitutes for 6625-00-003-2993: 6145-00-052-4764, 6625-00-003-2991, 6625-01-026-7890. Verify interchangeability with system specifications before substitution.

What are the specifications of 534437-1?

Key specifications for 534437-1: Overall Height: 3.120 INCHES MAXIMUM IN; Mounting Stud Diameter: 0.112 INCHES NOMINAL IN; Circuit Attachment Method and Quantity: 2 THREADED STUD; Measurement Range: +0.0 TO 60.0 MILLIAMPERES, DC 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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