PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SK-333PIECE5Transformer,power

Treadwell Corporation (delaware) Dba Treadwell Corp · NSN 5950-01-123-9371 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-123-9371 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-123-9371. Primary manufacturer part number: SK-333PIECE5.
Features
  • Transformer,power — FSC 5950
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Winding Operating Current: 12.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
  • Winding Operating Voltage: 50.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Frequency Rating: 60.0 HERTZ NOMINAL SINGLE COMPONENT
  • Terminal Type and Quantity: 4 WIRE LEAD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-123-9371, 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 Treadwell Corporation (delaware) Dba Treadwell Corp. Government technical data includes 7 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-123-9371
Primary Part NumberSK-333PIECE5
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerTreadwell Corporation (delaware) Dba Treadwell Corp
StatusACTIVE
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Current12.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Winding Operating Voltage50.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Terminal Type and Quantity4 WIRE LEAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4720-00-203-3912 INTERCHANGEABLE
Hose Assembly,nonmetallic
3040-00-335-9912 INTERCHANGEABLE
Shaft,straight
5120-01-384-5972 INTERCHANGEABLE
Tweezers,craftsman's
Cross-Reference Index
Part NumberManufacturer
57601 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
SK-333PIECE5 PRIMARY Treadwell Corporation (delaware) Dba Treadwell Corp (USA)
Related Parts
4720-00-203-3912INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
3040-00-335-9912INTERCHANGEABLE
SHAFT,STRAIGHT
5120-01-384-5972INTERCHANGEABLE
TWEEZERS,CRAFTSMAN'S

Frequently Asked Questions

What is NSN 5950-01-123-9371?

NSN 5950-01-123-9371 is a Transformer,power, manufactured by Treadwell Corporation (delaware) Dba Treadwell Corp, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-123-9371?

NSN 5950-01-123-9371 has 2 cross-referenced part numbers: 57601 (Electronic Transformer Corp Div Electronic Transformer Corporation), SK-333PIECE5 (Treadwell Corporation (delaware) Dba Treadwell Corp).

What NSN replaces 5950-01-123-9371?

There are 3 known substitutes for 5950-01-123-9371: 4720-00-203-3912, 3040-00-335-9912, 5120-01-384-5972. Verify interchangeability with system specifications before substitution.

What are the specifications of SK-333PIECE5?

Key specifications for SK-333PIECE5: Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Winding Operating Current: 12.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY. 7 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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