PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5-1281Transformer,power Autotransforme

Superior Electric Holding Group Llc Div Specialty Product Technologies · NSN 5950-00-943-3959 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-943-3959 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-943-3959. Primary manufacturer part number: 5-1281.
Features
  • Transformer,power Autotransforme — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Frequency Rating: 400.0 HERTZ MINIMUM AND 1.6 KILOHERTZ MAXIMUM SINGLE COMPONENT
  • Inclosure Type: PARTIALLY INCLOSED, HALF SHELL
  • Winding Operating Voltage: 0.00 AC VOLTS MINIMUM AND 150.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Nominal Thread Size: 0.164 INCHES SINGLE GROUP IN
  • Body Length: 2.250 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power Autotransforme, cataloged under National Stock Number 5950-00-943-3959, 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 Superior Electric Holding Group Llc Div Specialty Product Technologies. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-943-3959
Primary Part Number5-1281
Item NameTransformer,power Autotransforme
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerSuperior Electric Holding Group Llc Div Specialty Product Technologies
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Frequency Rating400.0 HERTZ MINIMUM AND 1.6 KILOHERTZ MAXIMUM SINGLE COMPONENT
Inclosure TypePARTIALLY INCLOSED, HALF SHELL
Winding Operating Voltage0.00 AC VOLTS MINIMUM AND 150.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Center to Center Distance Between Mounting Facilities Parallel to Width1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Body Length2.250 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Winding Power Rating390.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Terminal Type and Quantity3 THREADED STUD
Winding Function and Quantity1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
Body Height8.688 INCHES NOMINAL IN
Winding Operating Current2.8 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Width2.250 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5305-00-286-052051281 INTERCHANGEABLE
Setscrew
Sealcraft Corporation
3120-00-407-437551281 INTERCHANGEABLE
Bearing,plain,rod End
Rbc Transport Dynamics Corp Div Rbc Transport Dynamics
3020-00-517-3249206-401 INTERCHANGEABLE
Gear,helical
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
5360-00-792-777351281 INTERCHANGEABLE
Spring,helical,compression
Aerol Llc
2920-01-269-792051-281 INTERCHANGEABLE
Generator,engine Accessory
Prestolite Electric Inc
8345-01-590-3005 INTERCHANGEABLE
Flag,support Command of Division
Cross-Reference Index
Part NumberManufacturer
5-1281 PRIMARY Superior Electric Holding Group Llc Div Specialty Product Technologies (USA)
Related Parts
5305-00-286-0520INTERCHANGEABLE
SETSCREW
51281
3120-00-407-4375INTERCHANGEABLE
BEARING,PLAIN,ROD END
51281
3020-00-517-3249INTERCHANGEABLE
GEAR,HELICAL
206-401
5360-00-792-7773INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
51281
2920-01-269-7920INTERCHANGEABLE
GENERATOR,ENGINE ACCESSORY
51-281
8345-01-590-3005INTERCHANGEABLE
FLAG,SUPPORT COMMAND OF DIVISION

Frequently Asked Questions

What is NSN 5950-00-943-3959?

NSN 5950-00-943-3959 is a Transformer,power Autotransforme, manufactured by Superior Electric Holding Group Llc Div Specialty Product Technologies, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-943-3959?

NSN 5950-00-943-3959 has 1 cross-referenced part number: 5-1281 (Superior Electric Holding Group Llc Div Specialty Product Technologies).

What NSN replaces 5950-00-943-3959?

There are 6 known substitutes for 5950-00-943-3959: 5305-00-286-0520, 3120-00-407-4375, 3020-00-517-3249 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5-1281?

Key specifications for 5-1281: Reliability Indicator: NOT ESTABLISHED; Frequency Rating: 400.0 HERTZ MINIMUM AND 1.6 KILOHERTZ MAXIMUM SINGLE COMPONENT; Inclosure Type: PARTIALLY INCLOSED, HALF SHELL; Winding Operating Voltage: 0.00 AC VOLTS MINIMUM AND 150.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY OUTPUT. 20 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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