PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S70Transformer,power

Magnetika Inc · NSN 5950-00-645-5721 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-5721 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-5721. Primary manufacturer part number: S70.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • Body Length: 4.500 INCHES NOMINAL IN
  • Terminal Type and Quantity: 9 TAB, SOLDER LUG
  • Winding Operating Current: 5.0 AMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 3.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Mounting Facility Quantity: 4 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-645-5721, 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 Magnetika Inc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-645-5721
Primary Part NumberS70
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerMagnetika Inc
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Body Length4.500 INCHES NOMINAL IN
Terminal Type and Quantity9 TAB, SOLDER LUG
Winding Operating Current5.0 AMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length3.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Thread Series DesignatorUNF SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Winding Operating Voltage105.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Width3.125 INCHES NOMINAL IN
Body Height3.750 INCHES NOMINAL IN
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Thread Quantity Per Inch28 SINGLE GROUP
Nominal Thread Size0.216 INCHES SINGLE GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width2.438 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2540-00-275-9389S-70 INTERCHANGEABLE
Mirror Assembly,rearview
Curt Manufacturing Llc
9540-00-596-3047 INTERCHANGEABLE
Channel,structural
4730-00-900-0733S70 INTERCHANGEABLE
Nozzle,high Pressure
Strahman Valves Inc
2320-01-053-9397 INTERCHANGEABLE
Truck,maintenance
4820-01-124-3687SS70-912S-4J INTERCHANGEABLE
Valve,check
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
5120-01-141-6397S70 INTERCHANGEABLE
Die,crimping Tool
Souriau Usa, Inc. Dba Souriau Usa Inc
9540-01-199-4601 INTERCHANGEABLE
Channel,structural
5360-01-384-5882 INTERCHANGEABLE
Spring,helical,compression
Cross-Reference Index
Part NumberManufacturer
250725 Cae Usa Inc. (USA)
S70 United Transformer Corp Sub of Opt Industries Inc (USA)
250725 Raytheon Technical Services Company (USA)
S70 PRIMARY Magnetika Inc (USA)
Related Parts
2540-00-275-9389INTERCHANGEABLE
MIRROR ASSEMBLY,REARVIEW
S-70
9540-00-596-3047INTERCHANGEABLE
CHANNEL,STRUCTURAL
4730-00-900-0733INTERCHANGEABLE
NOZZLE,HIGH PRESSURE
S70
2320-01-053-9397INTERCHANGEABLE
TRUCK,MAINTENANCE
4820-01-124-3687INTERCHANGEABLE
VALVE,CHECK
SS70-912S-4J
5120-01-141-6397INTERCHANGEABLE
DIE,CRIMPING TOOL
S70
9540-01-199-4601INTERCHANGEABLE
CHANNEL,STRUCTURAL
5360-01-384-5882INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION

Frequently Asked Questions

What is NSN 5950-00-645-5721?

NSN 5950-00-645-5721 is a Transformer,power, manufactured by Magnetika Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-645-5721?

NSN 5950-00-645-5721 has 4 cross-referenced part numbers: 250725 (Cae Usa Inc.), S70 (United Transformer Corp Sub of Opt Industries Inc), 250725 (Raytheon Technical Services Company), S70 (Magnetika Inc).

What NSN replaces 5950-00-645-5721?

There are 8 known substitutes for 5950-00-645-5721: 2540-00-275-9389, 9540-00-596-3047, 4730-00-900-0733 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S70?

Key specifications for S70: Reliability Indicator: NOT ESTABLISHED; Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT; Body Length: 4.500 INCHES NOMINAL IN; Terminal Type and Quantity: 9 TAB, SOLDER LUG. 19 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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