PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MEDS85Ammeter

Genrad Inc · NSN 6625-00-842-1274 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-842-1274 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-842-1274. Primary manufacturer part number: MEDS85.
Features
  • Ammeter — FSC 6625
  • Mounting Hole Diameter: 0.125 INCHES NOMINAL IN
  • Scale Division Quantity: 50 SINGLE INDICATOR SINGLE RANGE
  • Circuit Attachment Method and Quantity: 2 SOLDER LUG
  • Circuit Current for Which Designed: DC
  • Measurement Range: +0.0 TO 100.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
  • Dial Scale Marking Color: BLACK SINGLE INDICATOR SINGLE RANGE
  • Installation Design: PANEL
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-842-1274, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Genrad Inc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-00-842-1274
Primary Part NumberMEDS85
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerGenrad Inc
StatusACTIVE
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 SOLDER LUG
Circuit Current for Which DesignedDC
Measurement Range+0.0 TO 100.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Mounting Bolt Circle Diameter3.024 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
Meter Body Diameter Behind Mounting Flange2.625 INCHES NOMINAL IN
ColorUNABLE TO DECODE
MaterialPLASTIC
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Meter Depth Behind Mounting Flange1.062 INCHES NOMINAL IN
Overall Diameter3.500 INCHES NOMINAL IN
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 SOLDER LUG
Circuit Current for Which DesignedDC
Measurement Range+0.0 TO 100.0 MICROAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Mounting Bolt Circle Diameter3.024 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
Meter Body Diameter Behind Mounting Flange2.625 INCHES NOMINAL IN
ColorUNABLE TO DECODE
MaterialPLASTIC
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
Meter,replacement
Voltmeter
Clip,electrical
6625-00-360-24918107515 INTERCHANGEABLE
Ammeter
Us Army Aviation and Missile Command
6625-00-504-2279 INTERCHANGEABLE
Meter,arbitrary Scale
6625-00-519-2231BH819 INTERCHANGEABLE
Ohmmeter
Howell Instruments, Inc. Dba Howell Instruments Inc
6625-00-538-9416 INTERCHANGEABLE
Galvanometer
6625-00-618-07711567301 INTERCHANGEABLE
Voltmeter
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6625-00-649-4560 INTERCHANGEABLE
Voltmeter
6625-00-668-5105310-04460 INTERCHANGEABLE
Meter,arbitrary Scale
Phaostron Instrument and Electronic Company
Cross-Reference Index
Part NumberManufacturer
MEDS85 Genrad Inc (USA)
HS3 Jewell Instruments Llc (USA)
Related Parts
6625-00-189-3836SUCCESSOR
METER,REPLACEMENT
6625-00-643-1751SUCCESSOR
VOLTMETER
5999-00-677-9861SUCCESSOR
CLIP,ELECTRICAL
6625-00-360-2491INTERCHANGEABLE
AMMETER
8107515
6625-00-504-2279INTERCHANGEABLE
METER,ARBITRARY SCALE
6625-00-519-2231INTERCHANGEABLE
OHMMETER
BH819
6625-00-538-9416INTERCHANGEABLE
GALVANOMETER
6625-00-618-0771INTERCHANGEABLE
VOLTMETER
1567301
6625-00-649-4560INTERCHANGEABLE
VOLTMETER
6625-00-668-5105INTERCHANGEABLE
METER,ARBITRARY SCALE
310-04460
6625-00-752-7698INTERCHANGEABLE
METER,MODULATION
6625-00-752-7806INTERCHANGEABLE
AMMETER
365-404

Frequently Asked Questions

What is NSN 6625-00-842-1274?

NSN 6625-00-842-1274 is a Ammeter, manufactured by Genrad Inc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-842-1274?

NSN 6625-00-842-1274 has 2 cross-referenced part numbers: MEDS85 (Genrad Inc), HS3 (Jewell Instruments Llc).

What NSN replaces 6625-00-842-1274?

There are 12 known substitutes for 6625-00-842-1274: 6625-00-189-3836, 6625-00-643-1751, 5999-00-677-9861 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MEDS85?

Key specifications for MEDS85: Mounting Hole Diameter: 0.125 INCHES NOMINAL IN; Scale Division Quantity: 50 SINGLE INDICATOR SINGLE RANGE; Circuit Attachment Method and Quantity: 2 SOLDER LUG; Circuit Current for Which Designed: DC. 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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