PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11558Transformer,power

Sora Power Inc. Dba Sigma Division · NSN 5950-01-321-2848 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-321-2848 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-321-2848. Primary manufacturer part number: 11558.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Frequency Rating: 181.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT
  • Winding Shielding Method: INTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
  • Thread Series Designator: UNF SINGLE GROUP
  • Body Width: 3.250 INCHES MAXIMUM IN
  • Transformer Winding Connection Type: DELTA-DELTA AND DELTA-WYE
  • Input-Output Phase Relationship: THREE PHASE TO THREE 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 5950-01-321-2848, 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 Sora Power Inc. Dba Sigma Division. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5950-01-321-2848
Primary Part Number11558
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerSora Power Inc. Dba Sigma Division
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Frequency Rating181.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
Thread Series DesignatorUNF SINGLE GROUP
Body Width3.250 INCHES MAXIMUM IN
Transformer Winding Connection TypeDELTA-DELTA AND DELTA-WYE
Input-Output Phase RelationshipTHREE PHASE TO THREE PHASE SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Center to Center Distance Between Mounting Facilities Parallel to Width2.540 INCHES MINIMUM AND 2.560 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 PRIMARY AND 2 PRIMARY SINGLE COMPONENT
Nominal Thread Size0.190 INCHES SINGLE GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Terminal Type and Quantity3 TAB, SOLDER LUG AND 6 TURRET
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Winding Operating Current350.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length3.552 INCHES MINIMUM AND 3.572 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage22.00 DC KILOVOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Test Data Document82577-984743 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Winding Operating Voltage181.00 AC VOLTS MINIMUM AND 216.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5998-00-065-4477 INTERCHANGEABLE
Circuit Card Assembly
6550-00-104-9301211558 INTERCHANGEABLE
Culture Medium,purple Broth Base
Becton, Dickinson and Company Dba Becton Dickinson & Co
5120-00-144-209789-1407 INTERCHANGEABLE
Die,fastener Setting
Morito Scovill Americas, Llc Dba Scovill Manufacturing
5133-00-236-3404 INTERCHANGEABLE
Drill,twist
5815-00-547-7880SM-C-186901GP6 INTERCHANGEABLE
Keytop,keyboard
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5305-00-637-147111558 INTERCHANGEABLE
Screw,machine
Goodrich Corporation Dba Goodrich Corp
2990-01-104-046711-558 INTERCHANGEABLE
Valve,seat Insert
Thermo King Corporation Dba Phoenix Global Distirbution.
5110-01-115-1181 INTERCHANGEABLE
Hatchet,shingling
4330-01-253-28510FRS-60-P-PD-10 INTERCHANGEABLE
Filter,fluid
Danfoss Power Solutions II, Llc
5998-01-264-883011558 INTERCHANGEABLE
Circuit Card Assembly
L & R Manufacturing Company
Cross-Reference Index
Part NumberManufacturer
984743-1 Raytheon Company Dba Raytheon (USA)
11558 PRIMARY Sora Power Inc. Dba Sigma Division (USA)
Related Parts
5998-00-065-4477INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6550-00-104-9301INTERCHANGEABLE
CULTURE MEDIUM,PURPLE BROTH BASE
211558
5120-00-144-2097INTERCHANGEABLE
DIE,FASTENER SETTING
89-1407
5133-00-236-3404INTERCHANGEABLE
DRILL,TWIST
5815-00-547-7880INTERCHANGEABLE
KEYTOP,KEYBOARD
SM-C-186901GP6
5305-00-637-1471INTERCHANGEABLE
SCREW,MACHINE
11558
2990-01-104-0467INTERCHANGEABLE
VALVE,SEAT INSERT
11-558
5110-01-115-1181INTERCHANGEABLE
HATCHET,SHINGLING
4330-01-253-2851INTERCHANGEABLE
FILTER,FLUID
0FRS-60-P-PD-10
5998-01-264-8830INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
11558

Frequently Asked Questions

What is NSN 5950-01-321-2848?

NSN 5950-01-321-2848 is a Transformer,power, manufactured by Sora Power Inc. Dba Sigma Division, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-321-2848?

NSN 5950-01-321-2848 has 2 cross-referenced part numbers: 984743-1 (Raytheon Company Dba Raytheon), 11558 (Sora Power Inc. Dba Sigma Division).

What NSN replaces 5950-01-321-2848?

There are 10 known substitutes for 5950-01-321-2848: 5998-00-065-4477, 6550-00-104-9301, 5120-00-144-2097 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11558?

Key specifications for 11558: Overall Length: 5.750 INCHES MAXIMUM IN; Reliability Indicator: NOT ESTABLISHED; Frequency Rating: 181.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT; Winding Shielding Method: INTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT. 21 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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