PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20015121Transformer,power

Bae Systems Information and Electronic Systems Integration Inc. · NSN 5950-00-995-3943 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-995-3943 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-995-3943. Primary manufacturer part number: 20015121.
Features
  • Transformer,power — FSC 5950
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Current: 5.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
  • Winding Operating Voltage: 6.40 AC KILOVOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Terminal Type and Quantity: 13 SOLDER STUD
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Body Width: 3.063 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-995-3943, 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 Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-995-3943
Primary Part Number20015121
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc.
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Width2.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Reliability IndicatorNOT ESTABLISHED
Winding Operating Current5.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Operating Voltage6.40 AC KILOVOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Terminal Type and Quantity13 SOLDER STUD
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Width3.063 INCHES NOMINAL IN
Body Height4.875 INCHES NOMINAL IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Nominal Thread Size0.190 INCHES SINGLE GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Voltage1.25 AC VOLTS NOMINAL AND 67.00 AC VOLTS NOMINAL AND 1.00 AC KILOVOLTS NOMINAL AND 1.33 AC KILOVOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Frequency Rating55.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM SINGLE COMPONENT
Thread Quantity Per Inch32 SINGLE GROUP
Body Length3.562 INCHES NOMINAL IN
Winding Operating Current600.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeHERMETICALLY SEALED
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Thread Series DesignatorUNF SINGLE GROUP
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Winding Operating Current3.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5120-00-255-44585120-00-255-4458 INTERCHANGEABLE
Burnisher,contact,hand
General Services Administration Federal Supply Service
5325-00-281-664433418 INTERCHANGEABLE
Ring,retaining
Dressta North America Ltd
5996-01-018-10942001512-1 INTERCHANGEABLE
Amplifier,intermediate Frequency
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
6515-01-163-2662334-18 INTERCHANGEABLE
Catheter,urethral
Dow Silicones Corporation
3020-01-180-1063P-33418 INTERCHANGEABLE
Gear,spur
Funk Mfg Co Sub of Deere and Co
2910-01-335-686933418 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
6240-01-464-202537046 INTERCHANGEABLE
Lamp,incandescent
Middleby Marshall Inc Southbend Div
3040-01-497-8048334-19 INTERCHANGEABLE
Shaft,straight
Kampi Components Co Inc
Cross-Reference Index
Part NumberManufacturer
20015121 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. (USA)
33418 Freed Transformer Co (USA)
Related Parts
5120-00-255-4458INTERCHANGEABLE
BURNISHER,CONTACT,HAND
5120-00-255-4458
5325-00-281-6644INTERCHANGEABLE
RING,RETAINING
33418
5996-01-018-1094INTERCHANGEABLE
AMPLIFIER,INTERMEDIATE FREQUENCY
2001512-1
6515-01-163-2662INTERCHANGEABLE
CATHETER,URETHRAL
334-18
3020-01-180-1063INTERCHANGEABLE
GEAR,SPUR
P-33418
2910-01-335-6869INTERCHANGEABLE
FILTER ELEMENT,FLUID
33418
6240-01-464-2025INTERCHANGEABLE
LAMP,INCANDESCENT
37046
3040-01-497-8048INTERCHANGEABLE
SHAFT,STRAIGHT
334-19

Frequently Asked Questions

What is NSN 5950-00-995-3943?

NSN 5950-00-995-3943 is a Transformer,power, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-995-3943?

NSN 5950-00-995-3943 has 2 cross-referenced part numbers: 20015121 (Bae Systems Information and Electronic Systems Integration Inc.), 33418 (Freed Transformer Co).

What NSN replaces 5950-00-995-3943?

There are 8 known substitutes for 5950-00-995-3943: 5120-00-255-4458, 5325-00-281-6644, 5996-01-018-1094 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20015121?

Key specifications for 20015121: Center to Center Distance Between Mounting Facilities Parallel to Width: 2.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Reliability Indicator: NOT ESTABLISHED; Winding Operating Current: 5.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY; Winding Operating Voltage: 6.40 AC KILOVOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY. 24 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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