PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

278-2123-010Transformer,radio Frequency

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5950-00-118-8138 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-118-8138 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-118-8138. Primary manufacturer part number: 278-2123-010.
Features
  • Transformer,radio Frequency — FSC 5950
  • Mounting Method: TERMINAL SINGLE GROUP
  • Terminal Type and Quantity: 1 TAB, SOLDER LUG AND 3 WIRE LEAD
  • Body Length: 1.640 INCHES NOMINAL IN
  • Inclosure Type: OPEN
  • Adjustment Device Drive Type: SHAFT SINGLE COMPONENT
  • Coil Form Type: HOLLOW SINGLE COMPONENT
  • Adjustment Method and Quantity: 1 ADJUSTABLE CORE 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 5950-00-118-8138, 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 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-118-8138
Primary Part Number278-2123-010
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
Terminal Type and Quantity1 TAB, SOLDER LUG AND 3 WIRE LEAD
Body Length1.640 INCHES NOMINAL IN
Inclosure TypeOPEN
Adjustment Device Drive TypeSHAFT SINGLE COMPONENT
Coil Form TypeHOLLOW SINGLE COMPONENT
Adjustment Method and Quantity1 ADJUSTABLE CORE SINGLE COMPONENT
Winding Function and Quantity2 PRIMARY SINGLE COMPONENT
Inductance Rating0.49 MICROHENRIES NOMINAL SINGLE COMPONENT ALL PRIMARY
Body Outside Diameter0.810 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
1095-00-019-1395A156 INTERCHANGEABLE
Control Panel
Lockheed Martin Corp
4320-00-035-7554A156 INTERCHANGEABLE
Impeller
Circor Naval Solutions Llc Dba Warren Pumps
5340-00-116-2376K740/AL INTERCHANGEABLE
Closer,door
Progressive Hardware Co., Inc. Dba Progressive Hardware Co Inc
3455-00-224-364010190 INTERCHANGEABLE
Cutter,milling,plain
Niagara Cutter Inc
4730-00-430-3165 INTERCHANGEABLE
Bushing,pipe
6680-00-827-010903Z30 INTERCHANGEABLE
Indicator,sight,liquid
Kaydon Custom Filtration Corporation
3120-00-959-9278 INTERCHANGEABLE
Bearing,sleeve
Cross-Reference Index
Part NumberManufacturer
278-2123-010 Albert Frei & Sons Inc. Div Albert Frei & Sons Inc. (USA)
278-2123-010 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
A156 Communication Coil, Inc. Div - (USA)
Related Parts
1095-00-019-1395INTERCHANGEABLE
CONTROL PANEL
A156
4320-00-035-7554INTERCHANGEABLE
IMPELLER
A156
5340-00-116-2376INTERCHANGEABLE
CLOSER,DOOR
K740/AL
3455-00-224-3640INTERCHANGEABLE
CUTTER,MILLING,PLAIN
10190
4730-00-430-3165INTERCHANGEABLE
BUSHING,PIPE
6680-00-827-0109INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
03Z30
3120-00-959-9278INTERCHANGEABLE
BEARING,SLEEVE

Frequently Asked Questions

What is NSN 5950-00-118-8138?

NSN 5950-00-118-8138 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 5950-00-118-8138?

NSN 5950-00-118-8138 has 3 cross-referenced part numbers: 278-2123-010 (Albert Frei & Sons Inc. Div Albert Frei & Sons Inc.), 278-2123-010 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), A156 (Communication Coil, Inc. Div -).

What NSN replaces 5950-00-118-8138?

There are 7 known substitutes for 5950-00-118-8138: 1095-00-019-1395, 4320-00-035-7554, 5340-00-116-2376 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 278-2123-010?

Key specifications for 278-2123-010: Mounting Method: TERMINAL SINGLE GROUP; Terminal Type and Quantity: 1 TAB, SOLDER LUG AND 3 WIRE LEAD; Body Length: 1.640 INCHES NOMINAL IN; Inclosure Type: OPEN. 11 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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