PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

666163-343Transformer,radio Frequency

Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc · NSN 5950-00-087-4058 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-087-4058 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-087-4058. Primary manufacturer part number: 666163-343.
Features
  • Transformer,radio Frequency — FSC 5950
  • Inclosure Type: OPEN
  • Inductance Rating: 0.78 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Reliability Indicator: NOT ESTABLISHED
  • Terminal Type and Quantity: 3 PIN
  • Frequency Rating: 25.0 MEGAHERTZ NOMINAL SINGLE COMPONENT
  • Coil Form Type: HOLLOW SINGLE COMPONENT
  • Rating Method: ELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,radio Frequency, cataloged under National Stock Number 5950-00-087-4058, 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 Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN5950-00-087-4058
Primary Part Number666163-343
Item NameTransformer,radio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
StatusACTIVE
Inclosure TypeOPEN
Inductance Rating0.78 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity3 PIN
Frequency Rating25.0 MEGAHERTZ NOMINAL SINGLE COMPONENT
Coil Form TypeHOLLOW SINGLE COMPONENT
Rating MethodELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY
Body Outside Diameter0.370 INCHES NOMINAL IN
Turn Quantity7.62 SINGLE COMPONENT SINGLE PRIMARY
Winding Function and Quantity1 PRIMARY SINGLE COMPONENT
Adjustment Device Drive TypeSHAFT SINGLE COMPONENT
Mounting MethodPLUG-IN SINGLE GROUP
Adjustment Method and Quantity1 ADJUSTABLE CORE SINGLE COMPONENT
Body Length0.310 INCHES NOMINAL IN
Winding Conductor Size0.00500 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-156-187572-6970-963 INTERCHANGEABLE
Bearing,ball,thrust
Fairbanks Morse, Llc
5940-00-271-7258 INTERCHANGEABLE
Terminal,lug
5331-00-288-1963C1124-70 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5940-00-552-224311B INTERCHANGEABLE
Terminal,lug
Zierick Mfg Corp
5331-00-808-079410596841-5 INTERCHANGEABLE
O-Ring
Us Army Aviation and Missile Command
6640-00-861-6209 INTERCHANGEABLE
Burner Cap and Grid
5910-01-046-7002913924-1 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Raytheon Company Dba Raytheon Co
5935-01-273-29053908 INTERCHANGEABLE
Jack,telephone
International Research Associates Inc.
5330-01-275-2602 INTERCHANGEABLE
Packing,preformed
5950-01-369-83923908 INTERCHANGEABLE
Transformer,current
Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division
Cross-Reference Index
Part NumberManufacturer
809000-412 Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
666163-343 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
3908 Precision Electronics, Inc (USA)
2523-43 American Trans-Coil Corp (USA)
Related Parts
3110-00-156-1875INTERCHANGEABLE
BEARING,BALL,THRUST
72-6970-963
5940-00-271-7258INTERCHANGEABLE
TERMINAL,LUG
5331-00-288-1963INTERCHANGEABLE
O-RING
C1124-70
5940-00-552-2243INTERCHANGEABLE
TERMINAL,LUG
11B
5331-00-808-0794INTERCHANGEABLE
O-RING
10596841-5
6640-00-861-6209INTERCHANGEABLE
BURNER CAP AND GRID
5910-01-046-7002INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
913924-1
5935-01-273-2905INTERCHANGEABLE
JACK,TELEPHONE
3908
5330-01-275-2602INTERCHANGEABLE
PACKING,PREFORMED
5950-01-369-8392INTERCHANGEABLE
TRANSFORMER,CURRENT
3908
5331-01-541-1314INTERCHANGEABLE
O-RING
3-908 NBR
5365-01-616-6256INTERCHANGEABLE
BUSHING,SLEEVE
3908

Frequently Asked Questions

What is NSN 5950-00-087-4058?

NSN 5950-00-087-4058 is a Transformer,radio Frequency, manufactured by Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-087-4058?

NSN 5950-00-087-4058 has 4 cross-referenced part numbers: 809000-412 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc), 666163-343 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc), 3908 (Precision Electronics, Inc), 2523-43 (American Trans-Coil Corp).

What NSN replaces 5950-00-087-4058?

There are 12 known substitutes for 5950-00-087-4058: 3110-00-156-1875, 5940-00-271-7258, 5331-00-288-1963 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 666163-343?

Key specifications for 666163-343: Inclosure Type: OPEN; Inductance Rating: 0.78 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Reliability Indicator: NOT ESTABLISHED; Terminal Type and Quantity: 3 PIN. 15 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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