PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1203-95Transformer,power

Bae Systems Information and Electronic Systems Integration Inc. · NSN 5950-00-421-2989 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-421-2989 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-421-2989. Primary manufacturer part number: 1203-95.
Features
  • Transformer,power — FSC 5950
  • Transformer Winding Connection Type: DELTA-DELTA
  • Input-Output Phase Relationship: TWO PHASE TO THREE PHASE SINGLE COMPONENT
  • Mounting Facility Quantity: 2 SINGLE GROUP
  • Terminal Type and Quantity: 7 SOLDER STUD
  • Winding Operating Voltage: 9.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Reliability Indicator: NOT ESTABLISHED
  • Nominal Thread Size: 0.086 INCHES SINGLE GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-421-2989, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-421-2989
Primary Part Number1203-95
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc.
StatusACTIVE
Transformer Winding Connection TypeDELTA-DELTA
Input-Output Phase RelationshipTWO PHASE TO THREE PHASE SINGLE COMPONENT
Mounting Facility Quantity2 SINGLE GROUP
Terminal Type and Quantity7 SOLDER STUD
Winding Operating Voltage9.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Reliability IndicatorNOT ESTABLISHED
Nominal Thread Size0.086 INCHES SINGLE GROUP IN
Inclosure TypeFULLY INCLOSED
Body Height0.083 INCHES MAXIMUM IN
Body Width1.800 INCHES NOMINAL IN
Body Length3.600 INCHES NOMINAL IN
Winding Operating Current6.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Winding Operating Voltage98.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Distance Between Mounting Facility Centers1.800 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5975-00-091-0487MT589AARN12 INTERCHANGEABLE
Base,chassis
Joint Electronics Type Designation System
4320-00-166-98499915 INTERCHANGEABLE
Ring,wearing
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
4810-00-175-88349915 INTERCHANGEABLE
Seat,valve
Northrop Grumman Systems Corporation Div Marine Systems
5315-00-597-5373120395 INTERCHANGEABLE
Key,woodruff
Brp Us Inc
5310-00-809-4085 INTERCHANGEABLE
Washer,flat
4310-01-004-35819915 INTERCHANGEABLE
Ring Set,piston
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5310-01-148-7477 INTERCHANGEABLE
Washer,flat
4240-01-246-53948576 INTERCHANGEABLE
Mask,air Filtering
3m Company
5998-01-344-7333 INTERCHANGEABLE
Electronic Components Assembly
5310-01-389-3442 INTERCHANGEABLE
Washer,flat
Cross-Reference Index
Part NumberManufacturer
A10 B G Laboratories Inc. (USA)
9915 Standex Electronics, Inc. (USA)
1203-95 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. (USA)
Related Parts
5975-00-091-0487INTERCHANGEABLE
BASE,CHASSIS
MT589AARN12
4320-00-166-9849INTERCHANGEABLE
RING,WEARING
9915
4810-00-175-8834INTERCHANGEABLE
SEAT,VALVE
9915
5315-00-597-5373INTERCHANGEABLE
KEY,WOODRUFF
120395
5310-00-809-4085INTERCHANGEABLE
WASHER,FLAT
4310-01-004-3581INTERCHANGEABLE
RING SET,PISTON
9915
5310-01-148-7477INTERCHANGEABLE
WASHER,FLAT
4240-01-246-5394INTERCHANGEABLE
MASK,AIR FILTERING
8576
5998-01-344-7333INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
5310-01-389-3442INTERCHANGEABLE
WASHER,FLAT
5330-01-449-9062INTERCHANGEABLE
PACKING ASSEMBLY
675-950-46-11
5120-01-602-8325INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT

Frequently Asked Questions

What is NSN 5950-00-421-2989?

NSN 5950-00-421-2989 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 5950-00-421-2989?

NSN 5950-00-421-2989 has 3 cross-referenced part numbers: A10 (B G Laboratories Inc.), 9915 (Standex Electronics, Inc.), 1203-95 (Bae Systems Information and Electronic Systems Integration Inc.).

What NSN replaces 5950-00-421-2989?

There are 12 known substitutes for 5950-00-421-2989: 5975-00-091-0487, 4320-00-166-9849, 4810-00-175-8834 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1203-95?

Key specifications for 1203-95: Transformer Winding Connection Type: DELTA-DELTA; Input-Output Phase Relationship: TWO PHASE TO THREE PHASE SINGLE COMPONENT; Mounting Facility Quantity: 2 SINGLE GROUP; Terminal Type and Quantity: 7 SOLDER STUD. 18 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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