PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-A-878664Transformer,power

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5950-01-076-3961 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-076-3961 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-076-3961. Primary manufacturer part number: SM-A-878664.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Voltage: 19.80 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
  • Winding Operating Current: 204.0 MILLIAMPERES AC NOMINAL SINGLE COMPONENT FIRST SECONDARY
  • Winding Power Rating: 2.8 VOLTS-AMPERES SINGLE COMPONENT SECOND SECONDARY
  • Mounting Hole Diameter: 0.187 INCHES NOMINAL SINGLE GROUP IN
  • Winding Function and Quantity: 1 PRIMARY AND 12 SECONDARY SINGLE COMPONENT
  • Winding Operating Voltage: 196.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Maximum Operating Temp: 155.0 CELSIUS DEGC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-076-3961, 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 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-076-3961
Primary Part NumberSM-A-878664
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Winding Operating Voltage19.80 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Operating Current204.0 MILLIAMPERES AC NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Power Rating2.8 VOLTS-AMPERES SINGLE COMPONENT SECOND SECONDARY
Mounting Hole Diameter0.187 INCHES NOMINAL SINGLE GROUP IN
Winding Function and Quantity1 PRIMARY AND 12 SECONDARY SINGLE COMPONENT
Winding Operating Voltage196.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Maximum Operating Temp155.0 CELSIUS DEGC
Winding Power Rating3.0 VOLTS-AMPERES SINGLE COMPONENT FOURTH SECONDARY
Winding Power Rating31.8 VOLTS-AMPERES SINGLE COMPONENT THIRD SECONDARY
Winding Operating Voltage19.80 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Operating Voltage10.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Winding Operating Current173.0 MILLIAMPERES AC NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Input-Output Phase RelationshipTHREE PHASE TO SINGLE PHASE AND THREE PHASE TO THREE PHASE SINGLE COMPONENT
Transformer Winding Connection TypeDELTA-DELTA
Body Length4.750 INCHES MAXIMUM IN
Mounting Facility Quantity4 SINGLE GROUP
Body Width2.500 INCHES MAXIMUM IN
Terminal Type and Quantity39 TAB, SOLDER LUG
Body Height4.000 INCHES MAXIMUM IN
Maximum Transformer Power Rating291.9 VOLT-AMPERE SINGLE COMPONENT
Winding Operating Current1.84 AMPERES AC NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Operating Voltage10.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Power Rating7.0 VOLTS-AMPERES SINGLE COMPONENT FIRST SECONDARY
Winding Operating Current81.0 MILLIAMPERES AC NOMINAL SINGLE COMPONENT SECOND SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Width1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2530-00-530-40695304069 INTERCHANGEABLE
Brake Shoe
U S Army Tank Automotive Command Amsta-Im-Mm
5962-01-236-668942654 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
WE-3192 Wems Electronics Transformer Group (USA)
WE-3192 Magnetika Inc (USA)
SM-A-878664 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
C13583 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
42654 Coast/advanced Chip Magnetics, Inc. (USA)
Related Parts
2530-00-530-4069INTERCHANGEABLE
BRAKE SHOE
5304069
5962-01-236-6689INTERCHANGEABLE
MICROCIRCUIT,MEMORY
42654

Frequently Asked Questions

What is NSN 5950-01-076-3961?

NSN 5950-01-076-3961 is a Transformer,power, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-076-3961?

NSN 5950-01-076-3961 has 5 cross-referenced part numbers: WE-3192 (Wems Electronics Transformer Group), WE-3192 (Magnetika Inc), SM-A-878664 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), C13583 (Electronic Transformer Corp Div Electronic Transformer Corporation), 42654 (Coast/advanced Chip Magnetics, Inc.).

What NSN replaces 5950-01-076-3961?

There are 2 known substitutes for 5950-01-076-3961: 2530-00-530-4069, 5962-01-236-6689. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-A-878664?

Key specifications for SM-A-878664: Winding Operating Voltage: 19.80 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY; Winding Operating Current: 204.0 MILLIAMPERES AC NOMINAL SINGLE COMPONENT FIRST SECONDARY; Winding Power Rating: 2.8 VOLTS-AMPERES SINGLE COMPONENT SECOND SECONDARY; Mounting Hole Diameter: 0.187 INCHES NOMINAL SINGLE GROUP IN. 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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