PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

278-0444-070Transformer,radio Frequency

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5950-01-126-2684 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-126-2684 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-126-2684. Primary manufacturer part number: 278-0444-070.
Features
  • Transformer,radio Frequency — FSC 5950
  • Mounting Method: TERMINAL SINGLE GROUP
  • Rating Method: WINDING TURNS SINGLE COMPONENT SINGLE SECONDARY
  • Winding Conductor Size: 0.00795 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY IN
  • Turn Quantity: 11 SINGLE COMPONENT SINGLE SECONDARY
  • Features Provided: TINNED WIRE LEADS
  • Body Length: 0.059 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
  • Rating Method: WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,radio Frequency, cataloged under National Stock Number 5950-01-126-2684, 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
NSN5950-01-126-2684
Primary Part Number278-0444-070
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
Mounting MethodTERMINAL SINGLE GROUP
Rating MethodWINDING TURNS SINGLE COMPONENT SINGLE SECONDARY
Winding Conductor Size0.00795 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY IN
Turn Quantity11 SINGLE COMPONENT SINGLE SECONDARY
Features ProvidedTINNED WIRE LEADS
Body Length0.059 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
Rating MethodWINDING TURNS SINGLE COMPONENT SINGLE PRIMARY
Turn Quantity11 SINGLE COMPONENT SINGLE PRIMARY
Body Outside Diameter0.192 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
Winding Conductor Size0.00795 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE SECONDARY IN
Reliability IndicatorNOT ESTABLISHED
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Inclosure TypeOPEN
Terminal Type and Quantity4 WIRE LEAD
Maximum Operating Temp125.0 CELSIUS DEGC
Hazardous Locations/environmental ProtectionMOISTURE RESISTANT AND VIBRATION RESISTANT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5915-00-271-23212445209 INTERCHANGEABLE
Filter,radio Frequency Interfere
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4730-00-540-1525 INTERCHANGEABLE
Cap,tube
4320-01-134-3658A666 INTERCHANGEABLE
Impeller Assembly
Circor Naval Solutions Llc Dba Warren Pumps
5920-01-387-0156 INTERCHANGEABLE
Lightning Rod
Cross-Reference Index
Part NumberManufacturer
278-0444-070 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
278-0444-070 Prem Magnetics Inc (USA)
A-666 Communication Coil, Inc. Div - (USA)
278-0444-070 Vanguard Electronics, Llc (USA)
Related Parts
5915-00-271-2321INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
2445209
4730-00-540-1525INTERCHANGEABLE
CAP,TUBE
4320-01-134-3658INTERCHANGEABLE
IMPELLER ASSEMBLY
A666
5920-01-387-0156INTERCHANGEABLE
LIGHTNING ROD

Frequently Asked Questions

What is NSN 5950-01-126-2684?

NSN 5950-01-126-2684 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 5950-01-126-2684?

NSN 5950-01-126-2684 has 4 cross-referenced part numbers: 278-0444-070 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 278-0444-070 (Prem Magnetics Inc), A-666 (Communication Coil, Inc. Div -), 278-0444-070 (Vanguard Electronics, Llc).

What NSN replaces 5950-01-126-2684?

There are 4 known substitutes for 5950-01-126-2684: 5915-00-271-2321, 4730-00-540-1525, 4320-01-134-3658 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 278-0444-070?

Key specifications for 278-0444-070: Mounting Method: TERMINAL SINGLE GROUP; Rating Method: WINDING TURNS SINGLE COMPONENT SINGLE SECONDARY; Winding Conductor Size: 0.00795 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE PRIMARY IN; Turn Quantity: 11 SINGLE COMPONENT SINGLE SECONDARY. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com