PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18518Transformer,power

Freed Transformer Co · NSN 5950-00-645-5600 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-5600 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-5600. Primary manufacturer part number: 18518.
Features
  • Transformer,power — FSC 5950
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Body Width: 3.250 INCHES NOMINAL IN
  • Body Height: 3.375 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Body Length: 3.500 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-645-5600, 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 Freed Transformer Co. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-645-5600
Primary Part Number18518
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Mounting Facility Quantity4 SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Width3.250 INCHES NOMINAL IN
Body Height3.375 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Length3.500 INCHES NOMINAL IN
Inclosure TypePARTIALLY INCLOSED, HALF SHELL
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity15 TAB, SOLDER LUG
Winding Function and Quantity1 PRIMARY AND 6 SECONDARY SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5905-00-114-3349380-0313-000 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5935-01-043-0642150220-0203 INTERCHANGEABLE
Connector,plug,electrical
Itt Cannon Llc
5962-01-123-1700932883-584 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Dba Raytheon
6240-01-480-19421G3019 INTERCHANGEABLE
Lamp,fluorescent
Technical Consumer Products, Inc.
4820-01-498-5765 INTERCHANGEABLE
Valve,ball
Cross-Reference Index
Part NumberManufacturer
18518 PRIMARY Freed Transformer Co (USA)
Related Parts
5905-00-114-3349INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
380-0313-000
5935-01-043-0642INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
150220-0203
5962-01-123-1700INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
932883-584
6240-01-480-1942INTERCHANGEABLE
LAMP,FLUORESCENT
1G3019
4820-01-498-5765INTERCHANGEABLE
VALVE,BALL

Frequently Asked Questions

What is NSN 5950-00-645-5600?

NSN 5950-00-645-5600 is a Transformer,power, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-645-5600?

NSN 5950-00-645-5600 has 1 cross-referenced part number: 18518 (Freed Transformer Co).

What NSN replaces 5950-00-645-5600?

There are 5 known substitutes for 5950-00-645-5600: 5905-00-114-3349, 5935-01-043-0642, 5962-01-123-1700 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18518?

Key specifications for 18518: Mounting Method: THREADED STUD(S) SINGLE GROUP; Special Features: CASE METAL MATERIAL,PRIMARY WINDING 115 V RATING,SECONDARY WINDING S.1 V AT 3 AMP,6.4 V AT 1 AMP,6.4 V AT 1 AMP,6.4 V AT 3 AMP,6.4 V AT 8 AMP,1.8 KV AT 100 MA W/CENTER TAP V; Mounting Facility Quantity: 4 SINGLE GROUP; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT. 13 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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