PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12456-7Transformer,current

Magnespec Inc · NSN 5950-01-284-5058 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-284-5058 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-284-5058. Primary manufacturer part number: 12456-7.
Features
  • Transformer,current — FSC 5950
  • Mounting Hole Diameter: 0.194 INCHES NOMINAL SINGLE GROUP IN
  • Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT
  • Maximum Operating Temp: 160.0 CELSIUS DEGC
  • Winding Operating Current: 50.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
  • Winding Operating Voltage: 115.00 AC VOLTS MINIMUM AND 200.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Terminal Type and Quantity: 2 TAB, SOLDER LUG
  • Reliability Indicator: NOT ESTABLISHED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,current, cataloged under National Stock Number 5950-01-284-5058, 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 Magnespec Inc. Government technical data includes 15 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-284-5058
Primary Part Number12456-7
Item NameTransformer,current
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerMagnespec Inc
StatusACTIVE
Mounting Hole Diameter0.194 INCHES NOMINAL SINGLE GROUP IN
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Maximum Operating Temp160.0 CELSIUS DEGC
Winding Operating Current50.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Operating Voltage115.00 AC VOLTS MINIMUM AND 200.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Terminal Type and Quantity2 TAB, SOLDER LUG
Reliability IndicatorNOT ESTABLISHED
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting MethodBRACKET(S) AND UNTHREADED HOLE(S) SINGLE GROUP
Winding Operating Current250.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Center to Center Distance Between Mounting Facilities Parallel to Length1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeFULLY INCLOSED
Center to Center Distance Between Mounting Facilities Parallel to Width1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 SECONDARY SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6620-00-433-94021245-67 INTERCHANGEABLE
Gage,pressure,dial Indicating
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
2030-00-566-504249007 INTERCHANGEABLE
Cam Case Assy,hoist
Eaton Aerospace, Llc Dba Jackson South
5975-00-839-6089 INTERCHANGEABLE
Conduit,nonmetallic,rigid
4710-01-231-410849007 INTERCHANGEABLE
Tube,metallic
Walker Mfg Co
3020-01-307-740750A19 INTERCHANGEABLE
Sprocket Wheel
Altra Industrial Motion Corp.
2040-01-311-901249-007 INTERCHANGEABLE
Door,metal,marine Structural
Huntington Ingalls Incorporated Div Ingalls Shipbuilding
5310-01-330-7527124567 INTERCHANGEABLE
Washer,lock
Communications & Power Industries Llc Dba Cpi Div Microwave Power Products Division - Eimac Operations
4030-01-345-8334900-61002 INTERCHANGEABLE
Shackle
T. a. Pelsue Company Dba T a Pelsue Co
3040-01-351-8328 INTERCHANGEABLE
Ball Joint
6750-01-427-0925 INTERCHANGEABLE
Film,photographic
Cross-Reference Index
Part NumberManufacturer
12456-7 PRIMARY Magnespec Inc (USA)
695781-7 Lockheed Martin Corp (USA)
4900-7 PRIMARY William Spencer (USA)
Related Parts
6620-00-433-9402INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
1245-67
2030-00-566-5042INTERCHANGEABLE
CAM CASE ASSY,HOIST
49007
5975-00-839-6089INTERCHANGEABLE
CONDUIT,NONMETALLIC,RIGID
4710-01-231-4108INTERCHANGEABLE
TUBE,METALLIC
49007
3020-01-307-7407INTERCHANGEABLE
SPROCKET WHEEL
50A19
2040-01-311-9012INTERCHANGEABLE
DOOR,METAL,MARINE STRUCTURAL
49-007
5310-01-330-7527INTERCHANGEABLE
WASHER,LOCK
124567
4030-01-345-8334INTERCHANGEABLE
SHACKLE
900-61002
3040-01-351-8328INTERCHANGEABLE
BALL JOINT
6750-01-427-0925INTERCHANGEABLE
FILM,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 5950-01-284-5058?

NSN 5950-01-284-5058 is a Transformer,current, manufactured by Magnespec Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-284-5058?

NSN 5950-01-284-5058 has 3 cross-referenced part numbers: 12456-7 (Magnespec Inc), 695781-7 (Lockheed Martin Corp), 4900-7 (William Spencer).

What NSN replaces 5950-01-284-5058?

There are 10 known substitutes for 5950-01-284-5058: 6620-00-433-9402, 2030-00-566-5042, 5975-00-839-6089 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12456-7?

Key specifications for 12456-7: Mounting Hole Diameter: 0.194 INCHES NOMINAL SINGLE GROUP IN; Overall Height: 3.125 INCHES NOMINAL IN; Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT; Maximum Operating Temp: 160.0 CELSIUS DEGC. 19 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com