PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

905865-2Transformer,power

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5950-01-138-1880 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-138-1880 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-138-1880. Primary manufacturer part number: 905865-2.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Winding Operating Current: 11.64 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
  • Winding Operating Current: 1.64 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
  • Transformer Winding Connection Type: DELTA-DELTA
  • Input-Output Phase Relationship: THREE PHASE TO THREE PHASE SINGLE COMPONENT
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 5.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER 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 5950-01-138-1880, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN5950-01-138-1880
Primary Part Number905865-2
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Current11.64 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Operating Current1.64 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Transformer Winding Connection TypeDELTA-DELTA
Input-Output Phase RelationshipTHREE PHASE TO THREE PHASE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length5.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage24.63 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Thread Series DesignatorUNF SINGLE GROUP
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Body Length6.000 INCHES NOMINAL IN
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width3.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Maximum Operating Temp130.0 CELSIUS DEGC
Terminal Type and Quantity6 TURRET AND 10 PIN
Inclosure TypeFULLY INCLOSED
Winding Operating Voltage27.77 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Body Width4.000 INCHES NOMINAL IN
Nominal Thread Size0.190 INCHES SINGLE GROUP IN
Mounting Facility Quantity6 SINGLE GROUP
Body Height2.332 INCHES NOMINAL IN
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-050-71061-112757 INTERCHANGEABLE
Terminal,lug
Simpson Electric Company, Inc.
5905-00-111-4858 INTERCHANGEABLE
Resistor,fixed,composition
5815-00-125-8145101441 INTERCHANGEABLE
Cam
Lucent Technologies Inc Corporate Headquarters
5940-00-192-6567 INTERCHANGEABLE
Terminal Board
5306-00-207-522213030 INTERCHANGEABLE
Bolt,machine
Triumph Engine Control Systems Llc
4730-00-489-4858L030077PT0 INTERCHANGEABLE
Coupling,clamp,pipe
Victaulic Company of America Inc Dba Victaulic Company of America
5340-00-598-99804159 INTERCHANGEABLE
Strap,retaining
Abb Installation Products Inc
4820-00-916-465403800 INTERCHANGEABLE
Disk,valve
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
5815-00-976-1169 INTERCHANGEABLE
Extension
6220-01-203-696710144-1 INTERCHANGEABLE
Cover,plate
Grimes Aerospace Company
Cross-Reference Index
Part NumberManufacturer
905865-1 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
905865-2 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
13030 Magnespec Inc (USA)
03800 Magnetika Inc (USA)
101441 Dbp Microwave Inc. Dba Dbp Microwave Inc. (USA)
Related Parts
5940-00-050-7106INTERCHANGEABLE
TERMINAL,LUG
1-112757
5905-00-111-4858INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5815-00-125-8145INTERCHANGEABLE
CAM
101441
5940-00-192-6567INTERCHANGEABLE
TERMINAL BOARD
5306-00-207-5222INTERCHANGEABLE
BOLT,MACHINE
13030
4730-00-489-4858INTERCHANGEABLE
COUPLING,CLAMP,PIPE
L030077PT0
5340-00-598-9980INTERCHANGEABLE
STRAP,RETAINING
4159
4820-00-916-4654INTERCHANGEABLE
DISK,VALVE
03800
5815-00-976-1169INTERCHANGEABLE
EXTENSION
6220-01-203-6967INTERCHANGEABLE
COVER,PLATE
10144-1
5999-01-280-5482INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5342-01-303-5269INTERCHANGEABLE
PLUG,T-BOX
13-030

Frequently Asked Questions

What is NSN 5950-01-138-1880?

NSN 5950-01-138-1880 is a Transformer,power, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-138-1880?

NSN 5950-01-138-1880 has 5 cross-referenced part numbers: 905865-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 905865-2 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 13030 (Magnespec Inc), 03800 (Magnetika Inc), 101441 (Dbp Microwave Inc. Dba Dbp Microwave Inc.).

What NSN replaces 5950-01-138-1880?

There are 12 known substitutes for 5950-01-138-1880: 5940-00-050-7106, 5905-00-111-4858, 5815-00-125-8145 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 905865-2?

Key specifications for 905865-2: Reliability Indicator: NOT ESTABLISHED; Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Winding Operating Current: 11.64 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY; Winding Operating Current: 1.64 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY. 25 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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