PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66741Ammeter

Cummins Inc. · NSN 6625-00-384-8509 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-384-8509 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-384-8509. Primary manufacturer part number: 66741.
Features
  • Ammeter — FSC 6625
  • FSC Application Data: TEST SET,ELECT. EQUIP.
  • Mounting Bolt Circle Diameter: 2.374 INCHES NOMINAL IN
  • Sensitivity Rating: 46.0 MILLIVOLTS
  • Nuclear Hardness Critical Feature: NONHARDENED
  • Installation Design: PANEL
  • Scale Division Quantity: 12 SINGLE INDICATOR SINGLE RANGE
  • Dial Scale Marking Color: WHITE 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 6625-00-384-8509, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-384-8509
Primary Part Number66741
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerCummins Inc.
StatusCANCELLED
FSC Application DataTEST SET,ELECT. EQUIP.
Mounting Bolt Circle Diameter2.374 INCHES NOMINAL IN
Sensitivity Rating46.0 MILLIVOLTS
Nuclear Hardness Critical FeatureNONHARDENED
Installation DesignPANEL
Scale Division Quantity12 SINGLE INDICATOR SINGLE RANGE
Dial Scale Marking ColorWHITE SINGLE INDICATOR SINGLE RANGE
Circuit Construction TypeNONELECTRONIC
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Style DesignatorROUND FLUSH MTG
Pointer ColorWHITE SINGLE INDICATOR SINGLE RANGE
Meter Depth Behind Mounting Flange0.656 INCHES MINIMUM AND 0.979 INCHES MAXIMUM IN
Movement TypeMOVING COIL, PERMANENT MAGNET
Movement Suspension MethodJEWEL PIVOT BASE
Indicator TypeDIAL W/POINTER
Overall Diameter2.625 INCHES MINIMUM AND 2.656 INCHES MAXIMUM IN
Panel for Which DesignedNONMAGNETIC
Circuit Current for Which DesignedDC
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Scale Selection MethodTERMINAL
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Circuit Attachment Method and Quantity2 THREADED STUD
ColorUNABLE TO DECODE
Mounting Hole Diameter0.144 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
Accuracy in Percent-8.0 TO 8.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Power SourceEXTERNAL
Measurement Range-30.0 TO 30.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Features ProvidedZERO ADJUSTER
Meter Body Diameter Behind Mounting Flange1.954 INCHES MINIMUM AND 2.037 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.0100 lbs
Cube0.0010 cu ft
Verified Substitutes 12
5998-01-249-3507106-8 SUCCESSOR
Extender Card,electronic Test
Avionics Specialties, Inc.
3110-00-142-4358359S INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
6625-00-272-9897A113-28 INTERCHANGEABLE
Ammeter
Dresser Industries Inc Leroi Div
5340-00-317-271110688 INTERCHANGEABLE
Clamp,loop
Naval Ship Systems Command
6105-00-344-034010688 INTERCHANGEABLE
Adapter,motor
Leavitt Machine Co Dba Dexter Precision Products Div Dexter Innovative Solutions Llc CAGE 6dqd2 Has Purchase Leav
3110-00-694-762710688 INTERCHANGEABLE
Bearing
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
4320-00-888-277510688 INTERCHANGEABLE
Valve Shutoff
John Reiner & Co. Inc.
4320-01-084-024796246100PH INTERCHANGEABLE
Cover,hydraulic,pump-Motor
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5998-01-142-6783 INTERCHANGEABLE
Circuit Card Assembly
4130-01-210-8905 INTERCHANGEABLE
Idler Assembly
Cross-Reference Index
Part NumberManufacturer
K9717 Prestolite Electric Inc (USA)
K9717 Prestolite Electric Inc (USA)
66741 PRIMARY Cummins Inc. (USA)
10688A Prestolite Electric Inc (USA)
9717A Prestolite Electric Inc (USA)
A10101 Dana Off Highway Products, Llc (USA)
10688 Prestolite Electric Inc (USA)
4011 Faria Beede Instruments, Inc. Dba Faria Beede Instruments Inc (USA)
10688 Prestolite Electric Inc (USA)
10688A Prestolite Electric Inc (USA)
K10688 Prestolite Electric Inc (USA)
A10101 Clark Equipment Co (USA)
K10688 Prestolite Electric Inc (USA)
E48468M Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
9717A Prestolite Electric Inc (USA)
4015-190 Faria Beede Instruments, Inc. Dba Faria Beede Instruments Inc (USA)
A10101 Clark Material Handling Company (USA)
Related Parts
5998-01-249-3507SUCCESSOR
EXTENDER CARD,ELECTRONIC TEST
106-8
3110-00-142-4358INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
359S
6625-00-272-9897INTERCHANGEABLE
AMMETER
A113-28
5340-00-317-2711INTERCHANGEABLE
CLAMP,LOOP
10688
6105-00-344-0340INTERCHANGEABLE
ADAPTER,MOTOR
10688
3110-00-694-7627INTERCHANGEABLE
BEARING
10688
4320-00-888-2775INTERCHANGEABLE
VALVE SHUTOFF
10688
4320-01-084-0247INTERCHANGEABLE
COVER,HYDRAULIC,PUMP-MOTOR
96246100PH
5998-01-142-6783INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4130-01-210-8905INTERCHANGEABLE
IDLER ASSEMBLY
2510-01-304-3987INTERCHANGEABLE
FRAME SECTION,STRUCTURAL,VEHICUL
A10101
6240-01-344-4824INTERCHANGEABLE
LAMP,METAL HALIDE
MVR325/C/I/U/WM

Frequently Asked Questions

What is NSN 6625-00-384-8509?

NSN 6625-00-384-8509 is a Ammeter, manufactured by Cummins Inc., classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-384-8509?

NSN 6625-00-384-8509 has 17 cross-referenced part numbers: K9717 (Prestolite Electric Inc), K9717 (Prestolite Electric Inc), 66741 (Cummins Inc.), 10688A (Prestolite Electric Inc), 9717A (Prestolite Electric Inc) and 12 more.

What NSN replaces 6625-00-384-8509?

There are 12 known substitutes for 6625-00-384-8509: 5998-01-249-3507, 3110-00-142-4358, 6625-00-272-9897 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66741?

Key specifications for 66741: FSC Application Data: TEST SET,ELECT. EQUIP.; Mounting Bolt Circle Diameter: 2.374 INCHES NOMINAL IN; Sensitivity Rating: 46.0 MILLIVOLTS; Nuclear Hardness Critical Feature: NONHARDENED. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-384-8509 still in active supply?

NSN 6625-00-384-8509 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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