PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1521Ammeter

Solartron Electronics Inc Weston Instruments Div · NSN 6625-00-553-0613 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-553-0613 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-553-0613. Primary manufacturer part number: 1521.
Features
  • Ammeter — FSC 6625
  • Style Designator: ROUND FLUSH MTG
  • Meter Body Diameter Behind Mounting Flange: 2.210 INCHES NOMINAL IN
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Sensitivity Rating: 50.0 MILLIVOLTS
  • Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE
  • Overall Diameter: 2.695 INCHES MAXIMUM IN
  • Scale Division Quantity: 60 SINGLE INDICATOR SINGLE RANGE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ammeter, cataloged under National Stock Number 6625-00-553-0613, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Solartron Electronics Inc Weston Instruments Div. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-553-0613
Primary Part Number1521
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSolartron Electronics Inc Weston Instruments Div
StatusACTIVE
Style DesignatorROUND FLUSH MTG
Meter Body Diameter Behind Mounting Flange2.210 INCHES NOMINAL IN
Movement TypeMOVING COIL, PERMANENT MAGNET
Sensitivity Rating50.0 MILLIVOLTS
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Overall Diameter2.695 INCHES MAXIMUM IN
Scale Division Quantity60 SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Features ProvidedMAGNETIC SHIELD
Circuit Current for Which DesignedDC
Meter Depth Behind Mounting Flange1.687 INCHES MAXIMUM IN
Installation DesignPANEL
Circuit Attachment Method and Quantity2 SOLDERLESS LUG
ColorUNABLE TO DECODE
Style DesignatorROUND FLUSH MTG
Meter Body Diameter Behind Mounting Flange2.210 INCHES NOMINAL IN
Movement TypeMOVING COIL, PERMANENT MAGNET
Sensitivity Rating50.0 MILLIVOLTS
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Overall Diameter2.695 INCHES MAXIMUM IN
Scale Division Quantity60 SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-538-9246
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.0100 lbs
Cube0.0010 cu ft
Verified Substitutes 7
Voltmeter
6625-00-679-08919073243 SUCCESSOR
Meter,arbitrary Scale
Us Army Aviation and Missile Command
6625-00-875-069610105460 SUCCESSOR
Meter,arbitrary Scale
Us Army Aviation and Missile Command
Wattmeter
6625-00-950-63592514984 SUCCESSOR
Meter,arbitrary Scale
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6625-01-030-00491603463 SUCCESSOR
Voltmeter
Lockheed Martin Corporation Div Rms - Mitchel Field
6625-01-067-1129S10914 SUCCESSOR
Meter,special Scale
Simpson Electric Company, Inc.
Cross-Reference Index
Part NumberManufacturer
1521 Solartron Electronics Inc Weston Instruments Div (USA)
Related Parts
SUCCESSOR 6625-00-538-9246 Voltmeter
6625-00-679-0891SUCCESSOR
METER,ARBITRARY SCALE
9073243
6625-00-875-0696SUCCESSOR
METER,ARBITRARY SCALE
10105460
6625-00-884-0655SUCCESSOR
WATTMETER
6625-00-950-6359SUCCESSOR
METER,ARBITRARY SCALE
2514984
6625-01-030-0049SUCCESSOR
VOLTMETER
1603463
6625-01-067-1129SUCCESSOR
METER,SPECIAL SCALE
S10914

Frequently Asked Questions

What is NSN 6625-00-553-0613?

NSN 6625-00-553-0613 is a Ammeter, manufactured by Solartron Electronics Inc Weston Instruments Div, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-553-0613?

NSN 6625-00-553-0613 has 1 cross-referenced part number: 1521 (Solartron Electronics Inc Weston Instruments Div).

What NSN replaces 6625-00-553-0613?

There are 7 known substitutes for 6625-00-553-0613: 6625-00-538-9246, 6625-00-679-0891, 6625-00-875-0696 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1521?

Key specifications for 1521: Style Designator: ROUND FLUSH MTG; Meter Body Diameter Behind Mounting Flange: 2.210 INCHES NOMINAL IN; Movement Type: MOVING COIL, PERMANENT MAGNET; Sensitivity Rating: 50.0 MILLIVOLTS. 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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