PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-D-374999Transformer,power

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5950-00-899-3400 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-899-3400 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-899-3400. Primary manufacturer part number: SM-D-374999.
Features
  • Transformer,power — FSC 5950
  • Inclosure Type: FULLY INCLOSED
  • Winding Operating Voltage: 143.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
  • Nominal Thread Size: 0.112 INCHES SINGLE GROUP IN
  • Winding Operating Current: 130.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
  • Body Length: 2.360 INCHES NOMINAL IN
  • Frequency Rating: 420.0 HERTZ NOMINAL SINGLE COMPONENT
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-899-3400, 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 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-899-3400
Primary Part NumberSM-D-374999
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
Inclosure TypeFULLY INCLOSED
Winding Operating Voltage143.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Winding Operating Current130.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Body Length2.360 INCHES NOMINAL IN
Frequency Rating420.0 HERTZ NOMINAL SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting Facility Quantity2 SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Thread Quantity Per Inch40 SINGLE GROUP
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Terminal Type and Quantity8 TAB, SOLDER LUG
Winding Shielding MethodEXTERNAL INCLOSURE SINGLE COMPONENT
Body Height2.344 INCHES NOMINAL IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Current290.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage51.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Reliability IndicatorNOT ESTABLISHED
Body Width1.187 INCHES NOMINAL IN
Distance Between Mounting Facility Centers1.562 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage58.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3030-00-102-308723-3-13IN INTERCHANGEABLE
Belt,v
H20 Tank Inc U S Motors Div
4730-00-194-1114AS5194-0806 INTERCHANGEABLE
Adapter,straight,pipe to Boss
Sae International Dba Sae International
5120-00-223-101821504 INTERCHANGEABLE
Punch,drive Pin
Mayhew Steel Products Inc
5962-00-300-237543-201 INTERCHANGEABLE
Microcircuit,linear
Hydro-Aire Aerospace Corp
4730-00-465-5928125HBL-8-8 INTERCHANGEABLE
Adapter,straight,pipe to Hose
Parker-Hannifin Corp Div Fluid System Connector Division
2915-00-484-69908372 INTERCHANGEABLE
Retainer-Cap Bellow
Triumph Engine Control Systems Llc
3020-00-528-160443001 INTERCHANGEABLE
Pulley,groove
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
3030-00-528-44898372 INTERCHANGEABLE
Belt,v
Goodrich Corporation
6685-00-562-79026-01464 INTERCHANGEABLE
Thermometer,self-Indicating,bime
Sigma Products & Mfg
5945-00-581-3734 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
30-8372 Magnetic Components Inc (USA)
5950008993400 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
803055 L3harris Cincinnati Electronics Corporation (USA)
SM-D-374999 Magnetika/east Ltd Titan Transformer Div (USA)
SM-D-374999 Espey Mfg. & Electronics Corp. (USA)
SM-D-374999 E-Systems Inc Memcor Div Florida Opns (USA)
8372 Magnetic Components Inc (USA)
SMD414335 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
SM-D-374999 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
944-000-0001 Qualitron Inc (USA)
43001 Freed Transformer Co (USA)
A7107 Autodyne Manufacturing Co Inc (USA)
SMD414335 Raytheon Company (USA)
59T11C1558 Omega Associates, Inc. Dba Omega Associates Inc (USA)
Related Parts
3030-00-102-3087INTERCHANGEABLE
BELT,V
23-3-13IN
4730-00-194-1114INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO BOSS
AS5194-0806
5120-00-223-1018INTERCHANGEABLE
PUNCH,DRIVE PIN
21504
5962-00-300-2375INTERCHANGEABLE
MICROCIRCUIT,LINEAR
43-201
4730-00-465-5928INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
125HBL-8-8
2915-00-484-6990INTERCHANGEABLE
RETAINER-CAP BELLOW
8372
3020-00-528-1604INTERCHANGEABLE
PULLEY,GROOVE
43001
3030-00-528-4489INTERCHANGEABLE
BELT,V
8372
6685-00-562-7902INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
6-01464
5945-00-581-3734INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5930-00-898-1901INTERCHANGEABLE
SWITCH,ROTARY
1620-01-038-5776INTERCHANGEABLE
SHAFT ASSY,MLG VERTICAL
8372

Frequently Asked Questions

What is NSN 5950-00-899-3400?

NSN 5950-00-899-3400 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: cancelled.

What are the part numbers for NSN 5950-00-899-3400?

NSN 5950-00-899-3400 has 14 cross-referenced part numbers: 30-8372 (Magnetic Components Inc), 5950008993400 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee), 803055 (L3harris Cincinnati Electronics Corporation), SM-D-374999 (Magnetika/east Ltd Titan Transformer Div), SM-D-374999 (Espey Mfg. & Electronics Corp.) and 9 more.

What NSN replaces 5950-00-899-3400?

There are 12 known substitutes for 5950-00-899-3400: 3030-00-102-3087, 4730-00-194-1114, 5120-00-223-1018 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-D-374999?

Key specifications for SM-D-374999: Inclosure Type: FULLY INCLOSED; Winding Operating Voltage: 143.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY; Nominal Thread Size: 0.112 INCHES SINGLE GROUP IN; Winding Operating Current: 130.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-899-3400 still in active supply?

NSN 5950-00-899-3400 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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