PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27557Transformer,power

Sterling Transformer Corp · NSN 5950-01-220-0413 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-220-0413 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-220-0413. Primary manufacturer part number: 27557.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Body Height: 4.312 INCHES NOMINAL IN
  • Terminal Type and Quantity: 6 TAB, SOLDER LUG
  • Winding Operating Voltage: 14.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Winding Operating Current: 8.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Mounting Method: THREADED HOLE(S) 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 5950-01-220-0413, 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 Sterling Transformer Corp. Government technical data includes 19 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-220-0413
Primary Part Number27557
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerSterling Transformer Corp
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Body Height4.312 INCHES NOMINAL IN
Terminal Type and Quantity6 TAB, SOLDER LUG
Winding Operating Voltage14.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Operating Current8.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Winding Operating Voltage50.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Width5.062 INCHES NOMINAL IN
Thread Series DesignatorUNF SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Nominal Thread Size0.250 INCHES SINGLE GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Width2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Length6.812 INCHES NOMINAL IN
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Operating Current0.14 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length4.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
7510-00-281-6180 INTERCHANGEABLE
Binder,loose-Leaf
4520-01-019-25702N-11090-11 INTERCHANGEABLE
Heating Element,electrical,nonim
Star Manufacturing International Inc. Dba Star Manufacturing
3110-01-075-584927557 INTERCHANGEABLE
Bearing
Dressta North America Ltd
5950-01-079-961627557 INTERCHANGEABLE
Transformer,power
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
4730-01-254-4112 INTERCHANGEABLE
Parts Kit,steam Trap
5330-01-270-8291 INTERCHANGEABLE
Seal,plain Encased
3445-01-271-223744232 INTERCHANGEABLE
Punching and Shearing Machine,me
Peddinghaus Corp
7510-01-345-886544232 INTERCHANGEABLE
Refill,ball Point Pen
Gillette Co Paper Mate Div
5120-01-398-792600944232000 INTERCHANGEABLE
Socket,socket Wrench
Sears, Roebuck and Co. Dba Sears Div Sears Commercial
5305-01-548-473927557 INTERCHANGEABLE
Screw,cap,hexagon Head
Eagle Components, Inc
Cross-Reference Index
Part NumberManufacturer
27557 Sterling Transformer Corp (USA)
44232 Coast/advanced Chip Magnetics, Inc. (USA)
C16051 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
Related Parts
7510-00-281-6180INTERCHANGEABLE
BINDER,LOOSE-LEAF
4520-01-019-2570INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
2N-11090-11
3110-01-075-5849INTERCHANGEABLE
BEARING
27557
5950-01-079-9616INTERCHANGEABLE
TRANSFORMER,POWER
27557
4730-01-254-4112INTERCHANGEABLE
PARTS KIT,STEAM TRAP
5330-01-270-8291INTERCHANGEABLE
SEAL,PLAIN ENCASED
3445-01-271-2237INTERCHANGEABLE
PUNCHING AND SHEARING MACHINE,ME
44232
7510-01-345-8865INTERCHANGEABLE
REFILL,BALL POINT PEN
44232
5120-01-398-7926INTERCHANGEABLE
SOCKET,SOCKET WRENCH
00944232000
5305-01-548-4739INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
27557
5305-01-588-8793INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
7920-01-648-7537INTERCHANGEABLE
BRUSH,WIRE,SCRATCH
44232

Frequently Asked Questions

What is NSN 5950-01-220-0413?

NSN 5950-01-220-0413 is a Transformer,power, manufactured by Sterling Transformer Corp, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-220-0413?

NSN 5950-01-220-0413 has 3 cross-referenced part numbers: 27557 (Sterling Transformer Corp), 44232 (Coast/advanced Chip Magnetics, Inc.), C16051 (Electronic Transformer Corp Div Electronic Transformer Corporation).

What NSN replaces 5950-01-220-0413?

There are 12 known substitutes for 5950-01-220-0413: 7510-00-281-6180, 4520-01-019-2570, 3110-01-075-5849 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 27557?

Key specifications for 27557: Reliability Indicator: NOT ESTABLISHED; Body Height: 4.312 INCHES NOMINAL IN; Terminal Type and Quantity: 6 TAB, SOLDER LUG; Winding Operating Voltage: 14.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY. 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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