PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50140Ammeter

Telephone Company of America Incorporated · NSN 6625-00-028-3533 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-028-3533 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-028-3533. Primary manufacturer part number: 50140.
Features
  • Ammeter — FSC 6625
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
  • Measurement Range: -10.0 TO 10.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
  • Movement Suspension Method: JEWEL PIVOT BASE
  • Style Designator: ROUND FLUSH MTG
  • Color: UNABLE TO DECODE
  • Scale Division Quantity: 40 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 6625-00-028-3533, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Telephone Company of America Incorporated. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-00-028-3533
Primary Part Number50140
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerTelephone Company of America Incorporated
StatusACTIVE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Measurement Range-10.0 TO 10.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 THREADED STUD
Movement Suspension MethodJEWEL PIVOT BASE
Style DesignatorROUND FLUSH MTG
ColorUNABLE TO DECODE
Scale Division Quantity40 SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Sensitivity Rating50.0 MILLIVOLTS
Circuit Current for Which DesignedDC
Environmental ProtectionHERMETIC
Installation DesignPANEL
Movement TypeMOVING COIL, PERMANENT MAGNET
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Mounting Hole Diameter0.250 INCHES NOMINAL IN
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Indicator TypeDIAL W/POINTER
Overall Diameter2.695 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Meter Body Diameter Behind Mounting Flange2.210 INCHES NOMINAL IN
Meter Depth Behind Mounting Flange1.600 INCHES NOMINAL IN
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Measurement Range-10.0 TO 10.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 THREADED STUD
Movement Suspension MethodJEWEL PIVOT BASE
Style DesignatorROUND FLUSH MTG
ColorUNABLE TO DECODE
Scale Division Quantity40 SINGLE INDICATOR SINGLE RANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5330-00-117-9891 INTERCHANGEABLE
Seal,plain Encased
5325-00-619-295085-11-140-16 INTERCHANGEABLE
Stud,turnlock Fastener
Southco Inc
5307-01-003-960750140 INTERCHANGEABLE
Stud,plain
Oshkosh Defense Llc
5961-01-314-831750-140 INTERCHANGEABLE
Semiconductor Device,diode
Vanner, Inc
1005-01-487-243750140 INTERCHANGEABLE
Lever,breechblock,cocking
American Apex Corporation
5950-01-562-720950140 INTERCHANGEABLE
Transformer,power
Crispaire Corp Dba Marvair Co
5331-01-707-864950140 INTERCHANGEABLE
O-Ring
Hutchinson Industries, Inc Div Defense and Industry
Cross-Reference Index
Part NumberManufacturer
50140 PRIMARY Telephone Company of America Incorporated (USA)
Related Parts
5330-00-117-9891INTERCHANGEABLE
SEAL,PLAIN ENCASED
5325-00-619-2950INTERCHANGEABLE
STUD,TURNLOCK FASTENER
85-11-140-16
5307-01-003-9607INTERCHANGEABLE
STUD,PLAIN
50140
5961-01-314-8317INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
50-140
1005-01-487-2437INTERCHANGEABLE
LEVER,BREECHBLOCK,COCKING
50140
5950-01-562-7209INTERCHANGEABLE
TRANSFORMER,POWER
50140
5331-01-707-8649INTERCHANGEABLE
O-RING
50140

Frequently Asked Questions

What is NSN 6625-00-028-3533?

NSN 6625-00-028-3533 is a Ammeter, manufactured by Telephone Company of America Incorporated, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-028-3533?

NSN 6625-00-028-3533 has 1 cross-referenced part number: 50140 (Telephone Company of America Incorporated).

What NSN replaces 6625-00-028-3533?

There are 7 known substitutes for 6625-00-028-3533: 5330-00-117-9891, 5325-00-619-2950, 5307-01-003-9607 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50140?

Key specifications for 50140: Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Measurement Range: -10.0 TO 10.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE; Circuit Attachment Method and Quantity: 2 THREADED STUD; Movement Suspension Method: JEWEL PIVOT BASE. 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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