PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12121Coil,radio Frequency

L3 Technologies, Inc. Div Communication Systems-West · NSN 5950-01-041-6533 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-041-6533 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-041-6533. Primary manufacturer part number: 12121.
Features
  • Coil,radio Frequency — FSC 5950
  • Core Construction: LAMINATED SINGLE COMPONENT
  • Inclosure Type: OPEN
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.060 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • DC Resistance Rating in Ohms: 0.043 SINGLE COMPONENT SINGLE WINDING
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coil,radio Frequency, cataloged under National Stock Number 5950-01-041-6533, 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 L3 Technologies, Inc. Div Communication Systems-West. Government technical data includes 14 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-041-6533
Primary Part Number12121
Item NameCoil,radio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerL3 Technologies, Inc. Div Communication Systems-West
StatusACTIVE
Core ConstructionLAMINATED SINGLE COMPONENT
Inclosure TypeOPEN
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width2.060 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
DC Resistance Rating in Ohms0.043 SINGLE COMPONENT SINGLE WINDING
Inductance Rating4.40 MILLIHENRIES MINIMUM SINGLE COMPONENT SINGLE WINDING
Mounting Hole Diameter0.202 INCHES NOMINAL SINGLE GROUP IN
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Terminal Type and Quantity2 COLLAR/RING
Coil Form TypeSOLID SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Body Length3.250 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-058-963912121 INTERCHANGEABLE
Terminal Board
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5330-00-187-2959140-0096 INTERCHANGEABLE
Gasket
Cummins Power Generation Inc.
5133-00-243-9613 INTERCHANGEABLE
Drill,twist
5310-00-488-392012121 INTERCHANGEABLE
Washer,special
Funk Mfg Co Sub of Deere and Co
5915-00-503-47961212-1 INTERCHANGEABLE
Filter,radio Frequency Interfere
Cornell-Dubilier Electronics, Inc.
6515-00-619-821920-1350 INTERCHANGEABLE
Holder,suture Needle
Sklar Corporation Dba Sklar Instruments
4210-00-889-2492 INTERCHANGEABLE
Extinguisher,fire
5340-00-964-0256222015-001 INTERCHANGEABLE
Ferrule,handle
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
4920-00-974-227812121 INTERCHANGEABLE
Protector,thread
Elbitamerica, Inc.
5910-01-110-0393 INTERCHANGEABLE
Capacitor,fixed,plastic Dielectr
Cross-Reference Index
Part NumberManufacturer
12121 PRIMARY L3 Technologies, Inc. Div Communication Systems-West (USA)
12121 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
5940-00-058-9639INTERCHANGEABLE
TERMINAL BOARD
12121
5330-00-187-2959INTERCHANGEABLE
GASKET
140-0096
5133-00-243-9613INTERCHANGEABLE
DRILL,TWIST
5310-00-488-3920INTERCHANGEABLE
WASHER,SPECIAL
12121
5915-00-503-4796INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
1212-1
6515-00-619-8219INTERCHANGEABLE
HOLDER,SUTURE NEEDLE
20-1350
4210-00-889-2492INTERCHANGEABLE
EXTINGUISHER,FIRE
5340-00-964-0256INTERCHANGEABLE
FERRULE,HANDLE
222015-001
4920-00-974-2278INTERCHANGEABLE
PROTECTOR,THREAD
12121
5910-01-110-0393INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
6150-01-142-4548INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
12121
6540-01-146-2628INTERCHANGEABLE
OCCLUDER,EYE
208000

Frequently Asked Questions

What is NSN 5950-01-041-6533?

NSN 5950-01-041-6533 is a Coil,radio Frequency, manufactured by L3 Technologies, Inc. Div Communication Systems-West, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-041-6533?

NSN 5950-01-041-6533 has 2 cross-referenced part numbers: 12121 (L3 Technologies, Inc. Div Communication Systems-West), 12121 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 5950-01-041-6533?

There are 12 known substitutes for 5950-01-041-6533: 5940-00-058-9639, 5330-00-187-2959, 5133-00-243-9613 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12121?

Key specifications for 12121: Core Construction: LAMINATED SINGLE COMPONENT; Overall Width: 2.700 INCHES MAXIMUM IN; Inclosure Type: OPEN; Mounting Facility Quantity: 4 SINGLE GROUP. 17 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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