PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3-3Ammeter

Bartlett Instrument Co · NSN 6625-00-860-9284 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-860-9284 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-860-9284. Primary manufacturer part number: 3-3.
Features
  • Ammeter — FSC 6625
  • Mounting Facility Type and Quantity: 4 FLANGE
  • Mounting Arrangement Style: FOUR HOLE/STUD RECTANGULAR/SQUARE
  • Scale Division Quantity: 40 SINGLE INDICATOR SINGLE RANGE
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
  • Measurement Range: -20.0 TO 20.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
  • Material: PLASTIC
  • FSC Application Data: TEST SET,ELECT. EQUIP.
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-860-9284, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Bartlett Instrument Co. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN6625-00-860-9284
Primary Part Number3-3
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerBartlett Instrument Co
StatusACTIVE
Mounting Facility Type and Quantity4 FLANGE
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Scale Division Quantity40 SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 THREADED STUD
Measurement Range-20.0 TO 20.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
MaterialPLASTIC
FSC Application DataTEST SET,ELECT. EQUIP.
Mounting Stud Length0.530 INCHES NOMINAL IN
ColorUNABLE TO DECODE
Meter Body Diameter Behind Mounting Flange2.750 INCHES NOMINAL IN
Style DesignatorRECTANGULAR FLUSH MTG
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Meter Depth Behind Mounting Flange1.375 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length2.250 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Reliability IndicatorNOT ESTABLISHED
Center to Center Distance Between Mounting Facilities Parallel to Width2.250 INCHES NOMINAL IN
Mounting Facility Type and Quantity4 FLANGE
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Scale Division Quantity40 SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 THREADED STUD
Measurement Range-20.0 TO 20.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
MaterialPLASTIC
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5999-00-249-6643 (33)
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeXN
Verified Substitutes 12
5999-00-249-664333 SUCCESSOR
Clip,electrical
Birnbach Co Inc
6625-00-643-1468450-0089-00 SUCCESSOR
Ammeter
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6625-01-025-2619972278-1 SUCCESSOR
Indicator,phase Sequence
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
6625-01-372-893733 SUCCESSOR
Ammeter
Fluke Corp
5915-00-030-7141 INTERCHANGEABLE
Network,hybrid Circuit
6625-00-188-3739327T0-50DCUA INTERCHANGEABLE
Ammeter
Triplett (bluffton) Corporation Dba Lfe Instruments
5310-00-208-2823S8201-838068-173 INTERCHANGEABLE
Nut,plain,round
Naval Ship Systems Command
6130-00-250-2236 INTERCHANGEABLE
Rectifier,metallic
5310-00-262-570927B INTERCHANGEABLE
Washer,flat
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
6625-00-553-0406 INTERCHANGEABLE
Voltmeter
Cross-Reference Index
Part NumberManufacturer
3-3 Bartlett Instrument Co (USA)
458-0477-000 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
458-0477-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
27B Simpson Electric Company, Inc. (USA)
Related Parts
SUCCESSOR 5999-00-249-6643 Clip,electrical · 33
6625-00-643-1468SUCCESSOR
AMMETER
450-0089-00
6625-01-025-2619SUCCESSOR
INDICATOR,PHASE SEQUENCE
972278-1
6625-01-372-8937SUCCESSOR
AMMETER
33
5915-00-030-7141INTERCHANGEABLE
NETWORK,HYBRID CIRCUIT
6625-00-188-3739INTERCHANGEABLE
AMMETER
327T0-50DCUA
5310-00-208-2823INTERCHANGEABLE
NUT,PLAIN,ROUND
S8201-838068-173
6130-00-250-2236INTERCHANGEABLE
RECTIFIER,METALLIC
5310-00-262-5709INTERCHANGEABLE
WASHER,FLAT
27B
6625-00-553-0406INTERCHANGEABLE
VOLTMETER
6625-00-844-6450INTERCHANGEABLE
AMMETER
450-0100-000
6625-00-856-0930INTERCHANGEABLE
AMMETER
458-0470-000

Frequently Asked Questions

What is NSN 6625-00-860-9284?

NSN 6625-00-860-9284 is a Ammeter, manufactured by Bartlett Instrument Co, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-860-9284?

NSN 6625-00-860-9284 has 4 cross-referenced part numbers: 3-3 (Bartlett Instrument Co), 458-0477-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 458-0477-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 27B (Simpson Electric Company, Inc.).

What NSN replaces 6625-00-860-9284?

There are 12 known substitutes for 6625-00-860-9284: 5999-00-249-6643, 6625-00-643-1468, 6625-01-025-2619 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3-3?

Key specifications for 3-3: Mounting Facility Type and Quantity: 4 FLANGE; Mounting Arrangement Style: FOUR HOLE/STUD RECTANGULAR/SQUARE; Scale Division Quantity: 40 SINGLE INDICATOR SINGLE RANGE; Circuit Attachment Method and Quantity: 2 THREADED STUD. 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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