PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7404Transformer,power

Staco Energy Products Co Dba Staco Energy Products Co · NSN 5950-00-504-9665 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-504-9665 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-504-9665. Primary manufacturer part number: 7404.
Features
  • Transformer,power — FSC 5950
  • Mounting Bolt Circle Diameter: 4.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Terminal Type and Quantity: 4 THREADED STUD
  • Reliability Indicator: NOT ESTABLISHED
  • Frequency Rating: 400.0 HERTZ MINIMUM AND 800.0 HERTZ MAXIMUM SINGLE COMPONENT
  • Nominal Thread Size: 0.375 INCHES SINGLE GROUP IN
  • Body Width: 7.188 INCHES NOMINAL IN
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-504-9665, 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 Staco Energy Products Co Dba Staco Energy Products Co. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN5950-00-504-9665
Primary Part Number7404
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerStaco Energy Products Co Dba Staco Energy Products Co
StatusACTIVE
Mounting Bolt Circle Diameter4.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity4 THREADED STUD
Reliability IndicatorNOT ESTABLISHED
Frequency Rating400.0 HERTZ MINIMUM AND 800.0 HERTZ MAXIMUM SINGLE COMPONENT
Nominal Thread Size0.375 INCHES SINGLE GROUP IN
Body Width7.188 INCHES NOMINAL IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Height4.562 INCHES NOMINAL IN
Body Length8.062 INCHES NOMINAL IN
Inclosure TypeOPEN
Mounting Facility Quantity3 SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Thread Series DesignatorUNF SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5815-00-125-48167404 INTERCHANGEABLE
Lever
Telemechanics Inc
3110-00-156-7531177003-63 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4710-00-213-05677404 INTERCHANGEABLE
Tube,brake
Eaton Corporation Dba Airflex Div Div Airflex
5962-00-341-0544 INTERCHANGEABLE
Microcircuit,digital
6230-00-494-8297420851 INTERCHANGEABLE
Floodlight,electric
Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company
5950-00-560-8069 INTERCHANGEABLE
Transformer,pulse
5950-00-647-3577292-4262G1 INTERCHANGEABLE
Transformer,power Autotransforme
Raytheon Company Dba Raytheon Co
2990-00-660-0890SCC47811 INTERCHANGEABLE
Crank,hand,vehicular
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
9540-00-720-1770 INTERCHANGEABLE
Beam,structural
5306-00-752-17397979595 INTERCHANGEABLE
Bolt,machine
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
B9897 Staco Energy Products Co Dba Staco Energy Products Co (USA)
7404 PRIMARY Staco Energy Products Co Dba Staco Energy Products Co (USA)
S1147 Superior Electric Holding Group Llc Div Specialty Product Technologies (USA)
Related Parts
5815-00-125-4816INTERCHANGEABLE
LEVER
7404
3110-00-156-7531INTERCHANGEABLE
BEARING,BALL,ANNULAR
177003-63
4710-00-213-0567INTERCHANGEABLE
TUBE,BRAKE
7404
5962-00-341-0544INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
6230-00-494-8297INTERCHANGEABLE
FLOODLIGHT,ELECTRIC
420851
5950-00-560-8069INTERCHANGEABLE
TRANSFORMER,PULSE
5950-00-647-3577INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
292-4262G1
2990-00-660-0890INTERCHANGEABLE
CRANK,HAND,VEHICULAR
SCC47811
9540-00-720-1770INTERCHANGEABLE
BEAM,STRUCTURAL
5306-00-752-1739INTERCHANGEABLE
BOLT,MACHINE
7979595
5962-01-074-4200INTERCHANGEABLE
MICROCIRCUIT,ELECTR
5962-01-076-8391INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 5950-00-504-9665?

NSN 5950-00-504-9665 is a Transformer,power, manufactured by Staco Energy Products Co Dba Staco Energy Products Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-504-9665?

NSN 5950-00-504-9665 has 3 cross-referenced part numbers: B9897 (Staco Energy Products Co Dba Staco Energy Products Co), 7404 (Staco Energy Products Co Dba Staco Energy Products Co), S1147 (Superior Electric Holding Group Llc Div Specialty Product Technologies).

What NSN replaces 5950-00-504-9665?

There are 12 known substitutes for 5950-00-504-9665: 5815-00-125-4816, 3110-00-156-7531, 4710-00-213-0567 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7404?

Key specifications for 7404: Mounting Bolt Circle Diameter: 4.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Terminal Type and Quantity: 4 THREADED STUD; Reliability Indicator: NOT ESTABLISHED; Frequency Rating: 400.0 HERTZ MINIMUM AND 800.0 HERTZ MAXIMUM SINGLE COMPONENT. 13 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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