PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

677-0391-00Transformer,audio Frequency

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5950-00-240-0749 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-240-0749 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-240-0749. Primary manufacturer part number: 677-0391-00.
Features
  • Transformer,audio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Terminal Type and Quantity: 4 TAB, SOLDER LUG
  • Inclosure Type: FULLY INCLOSED
  • Winding Operating Current: 30.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Body Length: 1.766 INCHES MAXIMUM IN
  • Impedance Rating in Ohms: 6700.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-240-0749, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-240-0749
Primary Part Number677-0391-00
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusCANCELLED
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity4 TAB, SOLDER LUG
Inclosure TypeFULLY INCLOSED
Winding Operating Current30.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Mounting Facility Quantity4 SINGLE GROUP
Body Length1.766 INCHES MAXIMUM IN
Impedance Rating in Ohms6700.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Impedance Rating in Ohms300.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width1.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Primary to Secondary Turn Ratio1-7/10 TO 8-1/10 SINGLE COMPONENT
Maximum Transformer Power Rating2.0 WATTS SINGLE COMPONENT
Body Outside Diameter1.375 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Frequency Rating300.0 HERTZ MINIMUM AND 4.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Mounting Hole Diameter0.125 INCHES NOMINAL SINGLE GROUP IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
2925-00-024-639225330 INTERCHANGEABLE
Antler Pipe Assembl
Vse Aviation, Inc.
5305-00-282-6228 INTERCHANGEABLE
Screw,machine
5955-00-345-8402 INTERCHANGEABLE
Spring,crystal Reta
5331-00-395-5737AS568-912 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5935-01-071-5286 INTERCHANGEABLE
Connector,receptacle,electrical
5330-01-234-7702 INTERCHANGEABLE
Gasket and Preformed Packing Set
5305-01-532-040125330 INTERCHANGEABLE
Setscrew
Fastenal Company Dba Fastenal Co
6515-01-589-7211311.449 INTERCHANGEABLE
Reduction Device,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
5935-01-641-260516486 INTERCHANGEABLE
Connector Assembly,electrical
Viavi Solutionsllc
8040-01-682-4540 INTERCHANGEABLE
Adhesive
Cross-Reference Index
Part NumberManufacturer
677-0391-00 Esco Inc (USA)
D5254 United Transformer Corp Sub of Opt Industries Inc (USA)
D5254 Magnetika Inc (USA)
25330 Freed Transformer Co (USA)
16486 Emerson Electric Co White-Rodgers Div (USA)
677-0391-00 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
2925-00-024-6392INTERCHANGEABLE
ANTLER PIPE ASSEMBL
25330
5305-00-282-6228INTERCHANGEABLE
SCREW,MACHINE
5955-00-345-8402INTERCHANGEABLE
SPRING,CRYSTAL RETA
5331-00-395-5737INTERCHANGEABLE
O-RING
AS568-912
5935-01-071-5286INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5330-01-234-7702INTERCHANGEABLE
GASKET AND PREFORMED PACKING SET
5305-01-532-0401INTERCHANGEABLE
SETSCREW
25330
6515-01-589-7211INTERCHANGEABLE
REDUCTION DEVICE,BONE
311.449
5935-01-641-2605INTERCHANGEABLE
CONNECTOR ASSEMBLY,ELECTRICAL
16486
8040-01-682-4540INTERCHANGEABLE
ADHESIVE

Frequently Asked Questions

What is NSN 5950-00-240-0749?

NSN 5950-00-240-0749 is a Transformer,audio 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: cancelled.

What are the part numbers for NSN 5950-00-240-0749?

NSN 5950-00-240-0749 has 6 cross-referenced part numbers: 677-0391-00 (Esco Inc), D5254 (United Transformer Corp Sub of Opt Industries Inc), D5254 (Magnetika Inc), 25330 (Freed Transformer Co), 16486 (Emerson Electric Co White-Rodgers Div) and 1 more.

What NSN replaces 5950-00-240-0749?

There are 10 known substitutes for 5950-00-240-0749: 2925-00-024-6392, 5305-00-282-6228, 5955-00-345-8402 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 677-0391-00?

Key specifications for 677-0391-00: Reliability Indicator: NOT ESTABLISHED; Terminal Type and Quantity: 4 TAB, SOLDER LUG; Inclosure Type: FULLY INCLOSED; Winding Operating Current: 30.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-240-0749 still in active supply?

NSN 5950-00-240-0749 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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