PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E166Transformer,radio Frequency

Viking Technologies, Ltd. · NSN 5950-00-229-5051 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-229-5051 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-229-5051. Primary manufacturer part number: E166.
Features
  • Transformer,radio Frequency — FSC 5950
  • Inclosure Type: OPEN
  • Body Outside Diameter: 1.000 INCHES NOMINAL IN
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Rating Method: WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY
  • Terminal Type and Quantity: 4 PIN
  • Rating Method: WINDING TURNS SINGLE COMPONENT SINGLE SECONDARY
  • Frequency Rating: 6.4 MEGAHERTZ MINIMUM AND 14.0 MEGAHERTZ MAXIMUM SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,radio Frequency, cataloged under National Stock Number 5950-00-229-5051, 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 Viking Technologies, Ltd.. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-229-5051
Primary Part NumberE166
Item NameTransformer,radio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerViking Technologies, Ltd.
StatusACTIVE
Inclosure TypeOPEN
Body Outside Diameter1.000 INCHES NOMINAL IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Rating MethodWINDING TURNS SINGLE COMPONENT SINGLE PRIMARY
Terminal Type and Quantity4 PIN
Rating MethodWINDING TURNS SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating6.4 MEGAHERTZ MINIMUM AND 14.0 MEGAHERTZ MAXIMUM SINGLE COMPONENT
Turn Quantity8-3/4 SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Mounting Facility Quantity2 SINGLE GROUP
Coil Form TypeHOLLOW SINGLE COMPONENT
Turn Quantity2-3/5 SINGLE COMPONENT SINGLE SECONDARY
Winding Conductor Size0.02010 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY IN
Distance Between Mounting Facility Centers0.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Length1.500 INCHES NOMINAL IN
Mounting Hole Diameter0.156 INCHES NOMINAL SINGLE GROUP IN
Adjustment Device Drive TypeSLOTTED SCREW SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Adjustment Method and Quantity1 ADJUSTABLE CORE SINGLE COMPONENT
Winding Conductor Size0.01264 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE SECONDARY IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
9390-00-290-4013 INTERCHANGEABLE
Nonmetallic Special Shaped Secti
Cross-Reference Index
Part NumberManufacturer
E166 Dar Electronics Inc Commercial Products Div Dba National Radio Co (USA)
SA54P Dar Electronics Inc Commercial Products Div Dba National Radio Co (USA)
E166 PRIMARY Viking Technologies, Ltd. (USA)
Related Parts
9390-00-290-4013INTERCHANGEABLE
NONMETALLIC SPECIAL SHAPED SECTI

Frequently Asked Questions

What is NSN 5950-00-229-5051?

NSN 5950-00-229-5051 is a Transformer,radio Frequency, manufactured by Viking Technologies, Ltd., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-229-5051?

NSN 5950-00-229-5051 has 3 cross-referenced part numbers: E166 (Dar Electronics Inc Commercial Products Div Dba National Radio Co), SA54P (Dar Electronics Inc Commercial Products Div Dba National Radio Co), E166 (Viking Technologies, Ltd.).

What NSN replaces 5950-00-229-5051?

There is 1 known substitute for 5950-00-229-5051: 9390-00-290-4013. Verify interchangeability with system specifications before substitution.

What are the specifications of E166?

Key specifications for E166: Inclosure Type: OPEN; Body Outside Diameter: 1.000 INCHES NOMINAL IN; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Rating Method: WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY. 20 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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