PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

278-0444-220Transformer,radio Frequency

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5950-01-115-9787 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-115-9787 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-115-9787. Primary manufacturer part number: 278-0444-220.
Features
  • Transformer,radio Frequency — FSC 5950
  • Winding Function and Quantity: 1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT
  • Terminal Type and Quantity: 4 PIN
  • Turn Quantity: 12 SINGLE COMPONENT SINGLE PRIMARY INPUT
  • Rating Method: WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY INPUT
  • Reliability Indicator: NOT ESTABLISHED
  • Coil Form Type: SOLID SINGLE COMPONENT
  • Maximum Operating Temp: 125.0 CELSIUS DEGC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,radio Frequency, cataloged under National Stock Number 5950-01-115-9787, 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 15 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-115-9787
Primary Part Number278-0444-220
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
Winding Function and Quantity1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT
Terminal Type and Quantity4 PIN
Turn Quantity12 SINGLE COMPONENT SINGLE PRIMARY INPUT
Rating MethodWINDING TURNS SINGLE COMPONENT SINGLE PRIMARY INPUT
Reliability IndicatorNOT ESTABLISHED
Coil Form TypeSOLID SINGLE COMPONENT
Maximum Operating Temp125.0 CELSIUS DEGC
Rating MethodWINDING TURNS SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Body Length0.285 INCHES MAXIMUM IN
Body Outside Diameter0.375 INCHES MAXIMUM IN
Winding Conductor Size0.00795 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY OUTPUT IN
Turn Quantity6 SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Winding Conductor Size0.00795 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY INPUT IN
Inclosure TypeFULLY INCLOSED
Mounting MethodTERMINAL SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5365-00-338-0873A764 INTERCHANGEABLE
Plug,machine Thread,magnetic
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
2520-00-769-760616379 INTERCHANGEABLE
Cap Case Bearing
Dana Corp Spicer Transmission Div
5930-00-914-24911800698 INTERCHANGEABLE
Switch,thermostatic
Northrop Grumman Systems Corporation
Cross-Reference Index
Part NumberManufacturer
278-0444-220 Prem Magnetics Inc (USA)
278-0444-220 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
A-764 Communication Coil, Inc. Div - (USA)
278-0444-220 Vanguard Electronics, Llc (USA)
Related Parts
5365-00-338-0873INTERCHANGEABLE
PLUG,MACHINE THREAD,MAGNETIC
A764
2520-00-769-7606INTERCHANGEABLE
CAP CASE BEARING
16379
5930-00-914-2491INTERCHANGEABLE
SWITCH,THERMOSTATIC
1800698

Frequently Asked Questions

What is NSN 5950-01-115-9787?

NSN 5950-01-115-9787 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 5950-01-115-9787?

NSN 5950-01-115-9787 has 4 cross-referenced part numbers: 278-0444-220 (Prem Magnetics Inc), 278-0444-220 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), A-764 (Communication Coil, Inc. Div -), 278-0444-220 (Vanguard Electronics, Llc).

What NSN replaces 5950-01-115-9787?

There are 3 known substitutes for 5950-01-115-9787: 5365-00-338-0873, 2520-00-769-7606, 5930-00-914-2491. Verify interchangeability with system specifications before substitution.

What are the specifications of 278-0444-220?

Key specifications for 278-0444-220: Winding Function and Quantity: 1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT; Terminal Type and Quantity: 4 PIN; Turn Quantity: 12 SINGLE COMPONENT SINGLE PRIMARY INPUT; Rating Method: WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY INPUT. 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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