PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

278-2129-040Coil,radio Frequency

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5950-00-494-4935 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-494-4935 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-494-4935. Primary manufacturer part number: 278-2129-040.
Features
  • Coil,radio Frequency — FSC 5950
  • Coil Form Type: HOLLOW SINGLE COMPONENT
  • Adjustment Device Drive Type: SLOTTED SCREW SINGLE COMPONENT
  • Core Construction: POWDERED SINGLE COMPONENT
  • Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING
  • Inclosure Type: FULLY INCLOSED
  • Mounting Method: TERMINAL SINGLE GROUP
  • Overall Diameter: 0.688 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coil,radio Frequency, cataloged under National Stock Number 5950-00-494-4935, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-494-4935
Primary Part Number278-2129-040
Item NameCoil,radio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusACTIVE
Coil Form TypeHOLLOW SINGLE COMPONENT
Adjustment Device Drive TypeSLOTTED SCREW SINGLE COMPONENT
Core ConstructionPOWDERED SINGLE COMPONENT
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Inclosure TypeFULLY INCLOSED
Mounting MethodTERMINAL SINGLE GROUP
Overall Diameter0.688 INCHES NOMINAL IN
Inductance Rating0.46 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
Maximum Operating Temp85.0 CELSIUS DEGC
Adjustment Method and Quantity1 ADJUSTABLE CUP SINGLE COMPONENT
Terminal Type and Quantity2 PIN
Quality Factor90 MINIMUM SINGLE COMPONENT SINGLE WINDING
Reliability IndicatorNOT ESTABLISHED
Body Length1.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-100-6150 INTERCHANGEABLE
Ball,bearing
3455-00-228-523841011 INTERCHANGEABLE
Cutter,milling,end
Doall Baltimore Company
5340-00-287-7536A-122 INTERCHANGEABLE
Plug Assembly
Essex Industries, Inc. Dba Essex Industries
3040-00-710-0724A1-22 INTERCHANGEABLE
Shaft,straight
Roller Bearing Co of America, Inc Div Pic Design
5845-00-753-1225927721-101 INTERCHANGEABLE
Final Assembly,box
Lockheed Martin Corp
4730-00-820-6204639-F-6 INTERCHANGEABLE
Plug,tube Fitting,threaded
Parker-Hannifin Corp Div Fluid System Connector Division
4320-01-208-7196A429 INTERCHANGEABLE
Impeller,pump,centrifugal
Circor Naval Solutions Llc Dba Warren Pumps
7690-01-373-7285A-122 INTERCHANGEABLE
Label
Shamrock Scientific Specialty Systems, Llc
Cross-Reference Index
Part NumberManufacturer
A122 Communication Coil, Inc. Div - (USA)
278-2129-040 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
3110-00-100-6150INTERCHANGEABLE
BALL,BEARING
3455-00-228-5238INTERCHANGEABLE
CUTTER,MILLING,END
41011
5340-00-287-7536INTERCHANGEABLE
PLUG ASSEMBLY
A-122
3040-00-710-0724INTERCHANGEABLE
SHAFT,STRAIGHT
A1-22
5845-00-753-1225INTERCHANGEABLE
FINAL ASSEMBLY,BOX
927721-101
4730-00-820-6204INTERCHANGEABLE
PLUG,TUBE FITTING,THREADED
639-F-6
4320-01-208-7196INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
A429
7690-01-373-7285INTERCHANGEABLE
LABEL
A-122

Frequently Asked Questions

What is NSN 5950-00-494-4935?

NSN 5950-00-494-4935 is a Coil,radio Frequency, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-494-4935?

NSN 5950-00-494-4935 has 2 cross-referenced part numbers: A122 (Communication Coil, Inc. Div -), 278-2129-040 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).

What NSN replaces 5950-00-494-4935?

There are 8 known substitutes for 5950-00-494-4935: 3110-00-100-6150, 3455-00-228-5238, 5340-00-287-7536 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 278-2129-040?

Key specifications for 278-2129-040: Coil Form Type: HOLLOW SINGLE COMPONENT; Adjustment Device Drive Type: SLOTTED SCREW SINGLE COMPONENT; Core Construction: POWDERED SINGLE COMPONENT; Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING. 14 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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