PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B5860Transformer,power

Esco Inc · NSN 5950-00-193-8667 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-193-8667 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-193-8667. Primary manufacturer part number: B5860.
Features
  • Transformer,power — FSC 5950
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Operating Current: 2.5 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Operating Voltage: 6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
  • Body Width: 3.719 INCHES NOMINAL IN
  • Inclosure Type: HERMETICALLY SEALED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-193-8667, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Esco Inc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-193-8667
Primary Part NumberB5860
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerEsco Inc
StatusCANCELLED
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Current2.5 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Body Width3.719 INCHES NOMINAL IN
Inclosure TypeHERMETICALLY SEALED
Winding Operating Current90.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Body Length3.719 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage520.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Terminal Type and Quantity10 STANDOFF INSULATOR
Body Height4.500 INCHES NOMINAL IN
Winding Operating Voltage110.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Frequency Rating50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
3020-01-319-0811B5860 INTERCHANGEABLE
Gear,helical
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
Cross-Reference Index
Part NumberManufacturer
B5860 Esco Inc (USA)
B5860 Magnetika Inc (USA)
B5860 United Transformer Corp Sub of Opt Industries Inc (USA)
SH4319A United Transformer Corp Sub of Opt Industries Inc (USA)
SH4319A Hed International, Inc. Dba Unique/pereny (USA)
Related Parts
3020-01-319-0811INTERCHANGEABLE
GEAR,HELICAL
B5860

Frequently Asked Questions

What is NSN 5950-00-193-8667?

NSN 5950-00-193-8667 is a Transformer,power, manufactured by Esco Inc, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-193-8667?

NSN 5950-00-193-8667 has 5 cross-referenced part numbers: B5860 (Esco Inc), B5860 (Magnetika Inc), B5860 (United Transformer Corp Sub of Opt Industries Inc), SH4319A (United Transformer Corp Sub of Opt Industries Inc), SH4319A (Hed International, Inc. Dba Unique/pereny).

What NSN replaces 5950-00-193-8667?

There is 1 known substitute for 5950-00-193-8667: 3020-01-319-0811. Verify interchangeability with system specifications before substitution.

What are the specifications of B5860?

Key specifications for B5860: Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Winding Operating Current: 2.5 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY; Center to Center Distance Between Mounting Facilities Parallel to Length: 3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Winding Operating Voltage: 6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-193-8667 still in active supply?

NSN 5950-00-193-8667 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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