PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

971685Ammeter

Raytheon Company · NSN 6625-00-197-3039 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-197-3039 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-197-3039. Primary manufacturer part number: 971685.
Features
  • Ammeter — FSC 6625
  • Mounting Facility Type and Quantity: 1 THREADED BODY
  • Circuit Attachment Method and Quantity: 2 SOLDER LUG
  • Meter Depth Behind Mounting Flange: 0.901 INCHES MAXIMUM IN
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Circuit Current for Which Designed: DC
  • Sensitivity Rating: 200.0 MILLIVOLTS
  • Nuclear Hardness Critical Feature: NONHARDENED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ammeter, cataloged under National Stock Number 6625-00-197-3039, 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. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-00-197-3039
Primary Part Number971685
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerRaytheon Company
StatusACTIVE
Mounting Facility Type and Quantity1 THREADED BODY
Circuit Attachment Method and Quantity2 SOLDER LUG
Meter Depth Behind Mounting Flange0.901 INCHES MAXIMUM IN
Movement TypeMOVING COIL, PERMANENT MAGNET
Circuit Current for Which DesignedDC
Sensitivity Rating200.0 MILLIVOLTS
Nuclear Hardness Critical FeatureNONHARDENED
Measurement Range+0.0 TO 100.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Meter Body Diameter Behind Mounting Flange0.985 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Overall Diameter1.250 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
Scale Division Quantity10 SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
Panel for Which DesignedNONMAGNETIC
Installation DesignPANEL
Mounting Facility Type and Quantity1 THREADED BODY
Circuit Attachment Method and Quantity2 SOLDER LUG
Meter Depth Behind Mounting Flange0.901 INCHES MAXIMUM IN
Movement TypeMOVING COIL, PERMANENT MAGNET
Circuit Current for Which DesignedDC
Sensitivity Rating200.0 MILLIVOLTS
Nuclear Hardness Critical FeatureNONHARDENED
Measurement Range+0.0 TO 100.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Meter Body Diameter Behind Mounting Flange0.985 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Overall Diameter1.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6625-00-226-75289-0100-241 SUCCESSOR
Ammeter
Prime Technology Llc
6625-00-484-1872 INTERCHANGEABLE
Meter,arbitrary Scale
6625-00-841-7096100W INTERCHANGEABLE
Ammeter
Prime Technology Llc
Cross-Reference Index
Part NumberManufacturer
971685 Raytheon Company (USA)
971685-1 Raytheon Company (USA)
MR05W100DCUA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILM17275 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6625-00-226-7528SUCCESSOR
AMMETER
9-0100-241
6625-00-484-1872INTERCHANGEABLE
METER,ARBITRARY SCALE
6625-00-841-7096INTERCHANGEABLE
AMMETER
100W

Frequently Asked Questions

What is NSN 6625-00-197-3039?

NSN 6625-00-197-3039 is a Ammeter, manufactured by Raytheon Company, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-197-3039?

NSN 6625-00-197-3039 has 4 cross-referenced part numbers: 971685 (Raytheon Company), 971685-1 (Raytheon Company), MR05W100DCUA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILM17275 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6625-00-197-3039?

There are 3 known substitutes for 6625-00-197-3039: 6625-00-226-7528, 6625-00-484-1872, 6625-00-841-7096. Verify interchangeability with system specifications before substitution.

What are the specifications of 971685?

Key specifications for 971685: Mounting Facility Type and Quantity: 1 THREADED BODY; Circuit Attachment Method and Quantity: 2 SOLDER LUG; Meter Depth Behind Mounting Flange: 0.901 INCHES MAXIMUM IN; Movement Type: MOVING COIL, PERMANENT MAGNET. 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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