PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

890538Transformer,power

Bae Systems Information and Electronic Systems Integration Inc. · NSN 5950-00-121-7708 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-121-7708 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-121-7708. Primary manufacturer part number: 890538.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Voltage: 32.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
  • Body Height: 1.880 INCHES MAXIMUM IN
  • Winding Operating Voltage: 58.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT
  • Winding Operating Voltage: 7.80 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Winding Operating Voltage: 10.60 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-121-7708, 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 26 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-121-7708
Primary Part Number890538
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc.
StatusACTIVE
Winding Operating Voltage32.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Body Height1.880 INCHES MAXIMUM IN
Winding Operating Voltage58.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Operating Voltage7.80 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Operating Voltage10.60 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length1.281 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Winding Operating Current250.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Winding Operating Current120.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Winding Function and Quantity1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Maximum Operating Temp125.0 CELSIUS DEGC
Winding Operating Current10.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Terminal Type and Quantity11 TAB, SOLDER LUG
Body Length2.130 INCHES MAXIMUM IN
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Reliability IndicatorNOT ESTABLISHED
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Winding Operating Current1.0 AMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
Body Width2.000 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4510-00-031-7634520 INTERCHANGEABLE
Faucet,double
Delta Faucet Co
3455-00-231-3482TABLE 1, D3IN, H1 1/4IN, W3IN INTERCHANGEABLE
Cutter,milling,plain
The American Society of Mechanical Engineers
5330-00-285-382502243465 INTERCHANGEABLE
Gasket
Rolls-Royce Solutions America Inc
5950-01-005-15312534807 INTERCHANGEABLE
Transformer,pulse
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4820-01-149-184440145-908 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-282-015040145-805 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-313-873440145-901 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
3040-01-440-211740145 INTERCHANGEABLE
Collar,shaft
Setra Systems, Inc. Dba Gems Sensors
6515-01-471-7880193131 INTERCHANGEABLE
Manifold,medical
Maxxim Medical Inc
4820-01-480-585540145-401 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
890538 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. (USA)
40145 Freed Transformer Co (USA)
890538 Hytronics Corp. (USA)
PEI 6096 Precision Electronics, Inc (USA)
C2967 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
Related Parts
4510-00-031-7634INTERCHANGEABLE
FAUCET,DOUBLE
520
3455-00-231-3482INTERCHANGEABLE
CUTTER,MILLING,PLAIN
TABLE 1, D3IN, H1 1/4IN, W3IN
5330-00-285-3825INTERCHANGEABLE
GASKET
02243465
5950-01-005-1531INTERCHANGEABLE
TRANSFORMER,PULSE
2534807
4820-01-149-1844INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40145-908
4820-01-282-0150INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40145-805
4820-01-313-8734INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40145-901
3040-01-440-2117INTERCHANGEABLE
COLLAR,SHAFT
40145
6515-01-471-7880INTERCHANGEABLE
MANIFOLD,MEDICAL
193131
4820-01-480-5855INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40145-401
8465-01-565-4022INTERCHANGEABLE
HYDRATION SYSTEM
40145

Frequently Asked Questions

What is NSN 5950-00-121-7708?

NSN 5950-00-121-7708 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 5950-00-121-7708?

NSN 5950-00-121-7708 has 5 cross-referenced part numbers: 890538 (Bae Systems Information and Electronic Systems Integration Inc.), 40145 (Freed Transformer Co), 890538 (Hytronics Corp.), PEI 6096 (Precision Electronics, Inc), C2967 (Electronic Transformer Corp Div Electronic Transformer Corporation).

What NSN replaces 5950-00-121-7708?

There are 11 known substitutes for 5950-00-121-7708: 4510-00-031-7634, 3455-00-231-3482, 5330-00-285-3825 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 890538?

Key specifications for 890538: Winding Operating Voltage: 32.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY; Body Height: 1.880 INCHES MAXIMUM IN; Winding Operating Voltage: 58.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY; Mounting Facility Quantity: 4 SINGLE GROUP. 26 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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