PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

025-400-48Transformer,power

Trw Inc Trw Electronic Components Irc Fixed Resistors Philadelphia Div · NSN 5950-00-999-4876 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-999-4876 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-999-4876. Primary manufacturer part number: 025-400-48.
Features
  • Transformer,power — FSC 5950
  • Body Length: 1.000 INCHES NOMINAL IN
  • Inclosure Type: FULLY INCLOSED
  • Mounting Method: TERMINAL SINGLE GROUP
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT
  • Terminal Type and Quantity: 4 WIRE LEAD
  • Body Outside Diameter: 0.558 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-999-4876, 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 Trw Inc Trw Electronic Components Irc Fixed Resistors Philadelphia Div. Government technical data includes 10 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-999-4876
Primary Part Number025-400-48
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerTrw Inc Trw Electronic Components Irc Fixed Resistors Philadelphia Div
StatusACTIVE
Body Length1.000 INCHES NOMINAL IN
Inclosure TypeFULLY INCLOSED
Mounting MethodTERMINAL SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Terminal Type and Quantity4 WIRE LEAD
Body Outside Diameter0.558 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Voltage26.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Operating Voltage26.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4730-00-053-0264 INTERCHANGEABLE
Adapter,straight,pipe to Tube
5330-00-171-78864F6888 INTERCHANGEABLE
Seal,plain Encased
Caterpillar Inc Div Caterpillar Defense
4730-00-174-455112Z330PC30 INTERCHANGEABLE
Swing Joint,pipe
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-227-2871MS24464-12 INTERCHANGEABLE
Bearing,roller,needle
Sae International Dba Sae International
5120-00-264-3796 INTERCHANGEABLE
Wrench,adjustable
3030-00-649-9445490-3 INTERCHANGEABLE
Belts,v,matched Set
Gates Corporation
2520-00-929-541550412 INTERCHANGEABLE
Shaft,axle,automotive
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
6530-01-140-540350412 INTERCHANGEABLE
Pan and Screen Ir
Olympic Medical Corp
5940-01-248-621650412 INTERCHANGEABLE
Terminal Board
Wells Mfg Co
4820-01-657-8075504-700-12 INTERCHANGEABLE
Valve,angle
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Cross-Reference Index
Part NumberManufacturer
025-400-48 Trw Inc Trw Electronic Components Irc Fixed Resistors Philadelphia Div (USA)
50412 Coiltron Inc Div Coiltron (USA)
025-400-48 Ametek, Inc. Dba Pmt Products Div Pmt Products (USA)
Related Parts
4730-00-053-0264INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
5330-00-171-7886INTERCHANGEABLE
SEAL,PLAIN ENCASED
4F6888
4730-00-174-4551INTERCHANGEABLE
SWING JOINT,PIPE
12Z330PC30
3110-00-227-2871INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
MS24464-12
5120-00-264-3796INTERCHANGEABLE
WRENCH,ADJUSTABLE
3030-00-649-9445INTERCHANGEABLE
BELTS,V,MATCHED SET
490-3
2520-00-929-5415INTERCHANGEABLE
SHAFT,AXLE,AUTOMOTIVE
50412
6530-01-140-5403INTERCHANGEABLE
PAN AND SCREEN IR
50412
5940-01-248-6216INTERCHANGEABLE
TERMINAL BOARD
50412
4820-01-657-8075INTERCHANGEABLE
VALVE,ANGLE
504-700-12
4820-01-706-9526INTERCHANGEABLE
REPAIR KIT,VALVE
504-12

Frequently Asked Questions

What is NSN 5950-00-999-4876?

NSN 5950-00-999-4876 is a Transformer,power, manufactured by Trw Inc Trw Electronic Components Irc Fixed Resistors Philadelphia Div, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-999-4876?

NSN 5950-00-999-4876 has 3 cross-referenced part numbers: 025-400-48 (Trw Inc Trw Electronic Components Irc Fixed Resistors Philadelphia Div), 50412 (Coiltron Inc Div Coiltron), 025-400-48 (Ametek, Inc. Dba Pmt Products Div Pmt Products).

What NSN replaces 5950-00-999-4876?

There are 11 known substitutes for 5950-00-999-4876: 4730-00-053-0264, 5330-00-171-7886, 4730-00-174-4551 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 025-400-48?

Key specifications for 025-400-48: Body Length: 1.000 INCHES NOMINAL IN; Inclosure Type: FULLY INCLOSED; Mounting Method: TERMINAL SINGLE GROUP; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 10 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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