PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

677-1323-000Transformer,audio Frequency

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5950-00-043-2575 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-043-2575 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-043-2575. Primary manufacturer part number: 677-1323-000.
Features
  • Transformer,audio Frequency — FSC 5950
  • Mounting Facility Quantity: 2 SINGLE GROUP
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Transformer Function: INPUT
  • Reliability Indicator: NOT ESTABLISHED
  • Nominal Thread Size: 0.112 INCHES SINGLE GROUP IN
  • Inclosure Type: HERMETICALLY SEALED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-043-2575, 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 4 commercial cross-references from 4 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
NSN5950-00-043-2575
Primary Part Number677-1323-000
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusACTIVE
Mounting Facility Quantity2 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Transformer FunctionINPUT
Reliability IndicatorNOT ESTABLISHED
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Inclosure TypeHERMETICALLY SEALED
Body Length0.719 INCHES NOMINAL IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Impedance Rating in Ohms82.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Frequency Rating250.0 HERTZ MINIMUM AND 6.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Body Width0.719 INCHES NOMINAL IN
Body Height1.078 INCHES NOMINAL IN
Impedance Rating in Ohms1000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Distance Between Mounting Facility Centers0.781 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity5 SOLDER STUD
Thread Quantity Per Inch40 SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-043-2576677-1325-000 INTERCHANGEABLE
Transformer,audio Frequency
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5330-00-285-827272R302 INTERCHANGEABLE
Seal,plain Encased
Oshkosh Defense Llc
5310-01-035-08514388-2 INTERCHANGEABLE
Nut,plain,plate
Pdi Ground Support Systems, Inc.
6105-01-122-590808634 INTERCHANGEABLE
Motor,alternating Current
Wilshire Corp
6625-01-168-437543882 INTERCHANGEABLE
Housing,electrical Meter
Liquid Controls, L.l.c. Div Idex Corporation
5360-01-281-871043882 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5940-01-694-228843882 INTERCHANGEABLE
Adapter,radio Frequency Cable
Meggitt Safety Systems Inc
Cross-Reference Index
Part NumberManufacturer
JR-048 United Transformer Corp Sub of Opt Industries Inc (USA)
677-1323-000 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
JR-048 Magnetika Inc (USA)
43882 Freed Transformer Co (USA)
Related Parts
5950-00-043-2576INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
677-1325-000
5330-00-285-8272INTERCHANGEABLE
SEAL,PLAIN ENCASED
72R302
5310-01-035-0851INTERCHANGEABLE
NUT,PLAIN,PLATE
4388-2
6105-01-122-5908INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
08634
6625-01-168-4375INTERCHANGEABLE
HOUSING,ELECTRICAL METER
43882
5360-01-281-8710INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
43882
5940-01-694-2288INTERCHANGEABLE
ADAPTER,RADIO FREQUENCY CABLE
43882

Frequently Asked Questions

What is NSN 5950-00-043-2575?

NSN 5950-00-043-2575 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: active.

What are the part numbers for NSN 5950-00-043-2575?

NSN 5950-00-043-2575 has 4 cross-referenced part numbers: JR-048 (United Transformer Corp Sub of Opt Industries Inc), 677-1323-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), JR-048 (Magnetika Inc), 43882 (Freed Transformer Co).

What NSN replaces 5950-00-043-2575?

There are 7 known substitutes for 5950-00-043-2575: 5950-00-043-2576, 5330-00-285-8272, 5310-01-035-0851 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 677-1323-000?

Key specifications for 677-1323-000: Mounting Facility Quantity: 2 SINGLE GROUP; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Transformer Function: INPUT. 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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