PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

621-18789Ammeter

Phaostron Instrument and Electronic Company · NSN 6625-00-037-9480 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-037-9480 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-037-9480. Primary manufacturer part number: 621-18789.
Features
  • Ammeter — FSC 6625
  • 6 verified cross-references
  • Primary manufacturer: Phaostron Instrument and Electronic Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ammeter, cataloged under National Stock Number 6625-00-037-9480, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Phaostron Instrument and Electronic Company. This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Catalog Facts
Item NameAmmeter
FSC / FSG6625 — No Item Name Available (FSG 66)
ManufacturersPhaostron Instrument and Electronic Company (CAGE 77221); Tm Systems, Inc. Dba Api Technologies Div Api Technologies - Power Solutions (CAGE 24361)
Successor NSN6625-00-332-6211 — Multimeter
Technical Specifications
ParameterValue
NSN6625-00-037-9480
Primary Part Number621-18789
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerPhaostron Instrument and Electronic Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.6500 lbs
Cube0.0208 cu ft
Verified Substitutes 10
6625-00-332-6211SC-C-24420 SUCCESSOR
Multimeter
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6625-00-555-2264628 SUCCESSOR
Generator,signal
Keysight Technologies Inc
6625-00-730-8550628 SUCCESSOR
Lead,test
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
Heat Sink,electrical-Electronic
6625-00-034-50641268867 INTERCHANGEABLE
Meter,special Scale
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6625-00-252-2275 INTERCHANGEABLE
Ammeter
6625-01-091-683211437135 INTERCHANGEABLE
Ammeter
Us Army Aviation and Missile Command
6625-01-171-5492G000146S7 INTERCHANGEABLE
Meter,arbitrary Scale
L3harris Technologies, Inc Div Space & Airborne Systems
6625-01-171-5559G000146S6 INTERCHANGEABLE
Meter,arbitrary Scale
L3harris Technologies, Inc Div Space & Airborne Systems
6625-01-272-6290A80040 INTERCHANGEABLE
Ammeter
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
Cross-Reference Index
Part NumberManufacturer
621-18789 Phaostron Instrument and Electronic Company (USA)
628 Phaostron Instrument and Electronic Company (USA)
621 Phaostron Instrument and Electronic Company (USA)
19048401 Tm Systems, Inc. Dba Api Technologies Div Api Technologies - Power Solutions (USA)
621V Phaostron Instrument and Electronic Company (USA)
628E Phaostron Instrument and Electronic Company (USA)
Related Parts
6625-00-332-6211SUCCESSOR
MULTIMETER
SC-C-24420
6625-00-555-2264SUCCESSOR
GENERATOR,SIGNAL
628
6625-00-730-8550SUCCESSOR
LEAD,TEST
628
5999-01-079-0513SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
6625-00-034-5064INTERCHANGEABLE
METER,SPECIAL SCALE
1268867
6625-00-252-2275INTERCHANGEABLE
AMMETER
6625-01-091-6832INTERCHANGEABLE
AMMETER
11437135
6625-01-171-5492INTERCHANGEABLE
METER,ARBITRARY SCALE
G000146S7
6625-01-171-5559INTERCHANGEABLE
METER,ARBITRARY SCALE
G000146S6
6625-01-272-6290INTERCHANGEABLE
AMMETER
A80040

Frequently Asked Questions

What is NSN 6625-00-037-9480?

NSN 6625-00-037-9480 is a Ammeter, manufactured by Phaostron Instrument and Electronic Company, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-037-9480?

NSN 6625-00-037-9480 has 6 cross-referenced part numbers: 621-18789 (Phaostron Instrument and Electronic Company), 628 (Phaostron Instrument and Electronic Company), 621 (Phaostron Instrument and Electronic Company), 19048401 (Tm Systems, Inc. Dba Api Technologies Div Api Technologies - Power Solutions), 621V (Phaostron Instrument and Electronic Company) and 1 more.

What NSN replaces 6625-00-037-9480?

There are 10 known substitutes for 6625-00-037-9480: 6625-00-332-6211, 6625-00-555-2264, 6625-00-730-8550 and 7 more. Verify interchangeability with system specifications before substitution.

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