PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5221Coil,radio Frequency

Bourns Inc · NSN 5950-00-645-3706 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-3706 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-3706. Primary manufacturer part number: 5221.
Features
  • Coil,radio Frequency — FSC 5950
  • DC Resistance Rating in Ohms: 0.020 SINGLE COMPONENT SINGLE WINDING
  • Body Length: 2.000 INCHES NOMINAL IN
  • Overall Diameter: 0.750 INCHES NOMINAL IN
  • Coil Form Type: SOLID SINGLE COMPONENT
  • Rating Method: ELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE WINDING
  • Turn Quantity: 30 SINGLE COMPONENT SINGLE WINDING
  • Mounting Method: TERMINAL SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coil,radio Frequency, cataloged under National Stock Number 5950-00-645-3706, 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 Bourns Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-645-3706
Primary Part Number5221
Item NameCoil,radio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBourns Inc
StatusCANCELLED
DC Resistance Rating in Ohms0.020 SINGLE COMPONENT SINGLE WINDING
Body Length2.000 INCHES NOMINAL IN
Overall Diameter0.750 INCHES NOMINAL IN
Coil Form TypeSOLID SINGLE COMPONENT
Rating MethodELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE WINDING
Turn Quantity30 SINGLE COMPONENT SINGLE WINDING
Mounting MethodTERMINAL SINGLE GROUP
Winding Operating Current6.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Winding Conductor Size0.05082 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE WINDING IN
Inductance Rating4.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
Inclosure TypeFULLY INCLOSED
Terminal Type and Quantity2 WIRE LEAD
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-100-04962X627B INTERCHANGEABLE
Cup,tapered Roller Bearing
Napco International Llc Dba Napco International Inc
5975-00-100-8716 INTERCHANGEABLE
Box Connector,electrical
5330-00-171-90104006145-3 INTERCHANGEABLE
Gasket
Agco Corp Parts Opn
6105-00-213-7427 INTERCHANGEABLE
Motor,alternating Current
4510-00-215-8019 INTERCHANGEABLE
Handle,faucet
5330-00-292-161214282 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5975-00-317-311696T075 INTERCHANGEABLE
Box Connector,electrical
Egs Electrical Group Appleton Div
5950-00-433-719210182075 INTERCHANGEABLE
Transformer,power
Us Army Aviation and Missile Command
5950-00-465-7987A31139 INTERCHANGEABLE
Transformer,audio Frequency
Princeton Tool Inc Div Paragon Precision
5910-00-528-9190914004-1B INTERCHANGEABLE
Capacitor,variable,air Dielectri
Raytheon Company Dba Raytheon
Cross-Reference Index
Part NumberManufacturer
829258 Ordnance Supply Office (USA)
BX18-4 Bendix Corp the (USA)
5221 Bell Industries Inc J W Miller Magnetics Div (USA)
BX18-4 Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div (USA)
SMB184243 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
2086 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
BX18-4 Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA)
A31139 Raytheon Company Dba Raytheon Co (USA)
A31139 Bendix Corp the (USA)
5221 PRIMARY Bourns Inc (USA)
Related Parts
3110-00-100-0496INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
2X627B
5975-00-100-8716INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5330-00-171-9010INTERCHANGEABLE
GASKET
4006145-3
6105-00-213-7427INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
4510-00-215-8019INTERCHANGEABLE
HANDLE,FAUCET
5330-00-292-1612INTERCHANGEABLE
SEAL,PLAIN ENCASED
14282
5975-00-317-3116INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
96T075
5950-00-433-7192INTERCHANGEABLE
TRANSFORMER,POWER
10182075
5950-00-465-7987INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
A31139
5910-00-528-9190INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
914004-1B
4820-00-585-8566INTERCHANGEABLE
VALVE,SAFETY RELIEF
9540-00-618-5460INTERCHANGEABLE
ANGLE,STRUCTURAL

Frequently Asked Questions

What is NSN 5950-00-645-3706?

NSN 5950-00-645-3706 is a Coil,radio Frequency, manufactured by Bourns Inc, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-645-3706?

NSN 5950-00-645-3706 has 10 cross-referenced part numbers: 829258 (Ordnance Supply Office), BX18-4 (Bendix Corp the), 5221 (Bell Industries Inc J W Miller Magnetics Div), BX18-4 (Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div), SMB184243 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir) and 5 more.

What NSN replaces 5950-00-645-3706?

There are 12 known substitutes for 5950-00-645-3706: 3110-00-100-0496, 5975-00-100-8716, 5330-00-171-9010 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5221?

Key specifications for 5221: DC Resistance Rating in Ohms: 0.020 SINGLE COMPONENT SINGLE WINDING; Body Length: 2.000 INCHES NOMINAL IN; Overall Diameter: 0.750 INCHES NOMINAL IN; Coil Form Type: SOLID SINGLE COMPONENT. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-645-3706 still in active supply?

NSN 5950-00-645-3706 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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