PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

278-0439-030Transformer,radio Frequency

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5950-01-270-9569 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-270-9569 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-270-9569. Primary manufacturer part number: 278-0439-030.
Features
  • Transformer,radio Frequency — FSC 5950
  • Body Length: 1.000 INCHES NOMINAL IN
  • Turn Quantity: 1 SINGLE COMPONENT SINGLE PRIMARY
  • Terminal Type and Quantity: 6 WIRE LEAD
  • Reliability Indicator: NOT ESTABLISHED
  • Body Width: 0.765 INCHES NOMINAL IN
  • Turn Quantity: 1 SINGLE COMPONENT FIRST SECONDARY
  • Coil Form Type: HOLLOW 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 5950-01-270-9569, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-270-9569
Primary Part Number278-0439-030
Item NameTransformer,radio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusACTIVE
Body Length1.000 INCHES NOMINAL IN
Turn Quantity1 SINGLE COMPONENT SINGLE PRIMARY
Terminal Type and Quantity6 WIRE LEAD
Reliability IndicatorNOT ESTABLISHED
Body Width0.765 INCHES NOMINAL IN
Turn Quantity1 SINGLE COMPONENT FIRST SECONDARY
Coil Form TypeHOLLOW SINGLE COMPONENT
Winding Conductor Size0.04030 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY IN
Winding Conductor Size0.04030 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT FIRST SECONDARY IN
Winding Conductor Size0.01594 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SECOND SECONDARY IN
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Rating MethodWINDING TURNS SINGLE COMPONENT SINGLE PRIMARY
Rating MethodWINDING TURNS SINGLE COMPONENT ALL SECONDARY
Mounting MethodTERMINAL SINGLE GROUP
Inclosure TypeOPEN
Turn Quantity2 SINGLE COMPONENT SECOND SECONDARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3040-00-131-5753A4-18 INTERCHANGEABLE
Shaft,straight
Roller Bearing Co of America, Inc Div Pic Design
4320-00-475-2663A418 INTERCHANGEABLE
Impeller,pump,centrifugal
Circor Naval Solutions Llc Dba Warren Pumps
2940-00-736-789701-114-002 INTERCHANGEABLE
Filter Element,fluid
Wm W Nugent & Co Inc
6105-01-432-4301E9358 INTERCHANGEABLE
Motor,alternating Current
General Electric Co Motor Business Group
Cross-Reference Index
Part NumberManufacturer
278-0439-030 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
278-0439-030 National Magnetics Group, Inc. Dba Ceramic Magnetics Div Ceramic Magnetics, Inc. (USA)
A-418 Communication Coil, Inc. Div - (USA)
278-0439-030 Prem Magnetics Inc (USA)
Related Parts
3040-00-131-5753INTERCHANGEABLE
SHAFT,STRAIGHT
A4-18
4320-00-475-2663INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
A418
2940-00-736-7897INTERCHANGEABLE
FILTER ELEMENT,FLUID
01-114-002
6105-01-432-4301INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
E9358

Frequently Asked Questions

What is NSN 5950-01-270-9569?

NSN 5950-01-270-9569 is a Transformer,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 5950-01-270-9569?

NSN 5950-01-270-9569 has 4 cross-referenced part numbers: 278-0439-030 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 278-0439-030 (National Magnetics Group, Inc. Dba Ceramic Magnetics Div Ceramic Magnetics, Inc.), A-418 (Communication Coil, Inc. Div -), 278-0439-030 (Prem Magnetics Inc).

What NSN replaces 5950-01-270-9569?

There are 4 known substitutes for 5950-01-270-9569: 3040-00-131-5753, 4320-00-475-2663, 2940-00-736-7897 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 278-0439-030?

Key specifications for 278-0439-030: Body Length: 1.000 INCHES NOMINAL IN; Turn Quantity: 1 SINGLE COMPONENT SINGLE PRIMARY; Terminal Type and Quantity: 6 WIRE LEAD; Reliability Indicator: NOT ESTABLISHED. 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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