PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

508-8Ammeter

Jewell Instruments Llc · NSN 6625-00-007-3462 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-007-3462 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-007-3462. Primary manufacturer part number: 508-8.
Features
  • Ammeter — FSC 6625
  • Scale Selection Method: TERMINAL
  • Circuit Attachment Method and Quantity: 2 SOLDER STUD
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
  • Measurement Range: +0.0 TO 125.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
  • Surface Treatment: CADMIUM
  • Accuracy in Percent: -1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
  • Style Designator: ROUND SEMI-FLUSH MTG
Applications
  • Applications requiring Steel construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-007-3462, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Jewell Instruments Llc. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-007-3462
Primary Part Number508-8
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerJewell Instruments Llc
StatusACTIVE
Scale Selection MethodTERMINAL
Circuit Attachment Method and Quantity2 SOLDER STUD
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Measurement Range+0.0 TO 125.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Surface TreatmentCADMIUM
Accuracy in Percent-1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Style DesignatorROUND SEMI-FLUSH MTG
MaterialSTEEL
ColorUNABLE TO DECODE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Scale Division Quantity125 SINGLE INDICATOR SINGLE RANGE
Mounting Stud Length0.790 INCHES NOMINAL IN
Overall Diameter3.510 INCHES NOMINAL IN
Installation DesignPANEL
Meter Depth Behind Mounting Flange1.660 INCHES NOMINAL IN
Meter Body Diameter Behind Mounting Flange2.800 INCHES NOMINAL IN
Circuit Current for Which DesignedDC
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Movement TypeMOVING COIL, PERMANENT MAGNET
MaterialSTEEL
Scale Selection MethodTERMINAL
Circuit Attachment Method and Quantity2 SOLDER STUD
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Measurement Range+0.0 TO 125.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight1.0700 lbs
Cube0.0456 cu ft
Verified Substitutes 5
Contact,electrical
6145-00-866-23076316 SUCCESSOR
Cable,special Purpose,electrical
Janor Wire & Cable Corp
Circuit Card Assembly
6145-00-073-86595088 INTERCHANGEABLE
Cable,special Purpose,electrical
Mercury Wire Products, Inc. Dba Mercury Wire Products Inc
3040-00-716-10627161062 INTERCHANGEABLE
Lever,manual Control
Army, United States Department of the Dba Rock Island Arsenal Jmtc
Cross-Reference Index
Part NumberManufacturer
990C074H02 Custom Metering Company Inc (USA)
508-8 PRIMARY Jewell Instruments Llc (USA)
990C074H02 Northrop Grumman Systems Corporation Dba Electronic Systems (USA)
A10906 PRIMARY Hughes Corporation Dba Mac Group, the Div Weschler Instruments (USA)
A10906 E I L Instruments Inc (USA)
MK777-293 Mkc Electronics Inc Dba Mk Electronics Div Mkc Electronics Inc, Dba Mk Electronics (USA)
508-8 Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc (USA)
Related Parts
5999-00-250-2667SUCCESSOR
CONTACT,ELECTRICAL
6145-00-866-2307SUCCESSOR
CABLE,SPECIAL PURPOSE,ELECTRICAL
6316
5998-01-158-2294SUCCESSOR
CIRCUIT CARD ASSEMBLY
6145-00-073-8659INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
5088
3040-00-716-1062INTERCHANGEABLE
LEVER,MANUAL CONTROL
7161062

Frequently Asked Questions

What is NSN 6625-00-007-3462?

NSN 6625-00-007-3462 is a Ammeter, manufactured by Jewell Instruments Llc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-007-3462?

NSN 6625-00-007-3462 has 7 cross-referenced part numbers: 990C074H02 (Custom Metering Company Inc), 508-8 (Jewell Instruments Llc), 990C074H02 (Northrop Grumman Systems Corporation Dba Electronic Systems), A10906 (Hughes Corporation Dba Mac Group, the Div Weschler Instruments), A10906 (E I L Instruments Inc) and 2 more.

What NSN replaces 6625-00-007-3462?

There are 5 known substitutes for 6625-00-007-3462: 5999-00-250-2667, 6145-00-866-2307, 5998-01-158-2294 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 508-8?

Key specifications for 508-8: Scale Selection Method: TERMINAL; Circuit Attachment Method and Quantity: 2 SOLDER STUD; Special Features: AC ALSO DESIGNED FOR NONMAGNETIC PANEL; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S). 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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