PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28534Transformer,audio Frequency

United Transformer Corp Sub of Opt Industries Inc · NSN 5950-00-831-1748 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-831-1748 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-831-1748. Primary manufacturer part number: 28534.
Features
  • Transformer,audio Frequency — FSC 5950
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Impedance Rating in Ohms: 6100.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Body Height: 1.375 INCHES MAXIMUM IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Distance Between Mounting Facility Centers: 0.781 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-831-1748, 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 United Transformer Corp Sub of Opt Industries Inc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-831-1748
Primary Part Number28534
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerUnited Transformer Corp Sub of Opt Industries Inc
StatusACTIVE
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Impedance Rating in Ohms6100.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Body Height1.375 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Distance Between Mounting Facility Centers0.781 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Current35.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Thread Quantity Per Inch40 SINGLE GROUP
Maximum Transformer Power Rating500.0 MILLIWATTS SINGLE COMPONENT
Impedance Rating in Ohms150.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
Mounting Facility Quantity2 SINGLE GROUP
Body Width0.906 INCHES MAXIMUM IN
Body Length1.219 INCHES MAXIMUM IN
Terminal Type and Quantity6 TAB, SOLDER LUG
Inclosure TypeHERMETICALLY SEALED
Frequency Rating300.0 HERTZ MINIMUM AND 4.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5305-00-151-1580 INTERCHANGEABLE
Screw,machine
3110-01-013-30836S2828 INTERCHANGEABLE
Cup,tapered Roller Bearing
Caterpillar Inc Div Caterpillar Defense
5910-01-016-0079124-058 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division
5306-01-051-802628534 INTERCHANGEABLE
Bolt,machine
Moog Inc. Dba Ampac-Isp Corp
6750-01-427-3020 INTERCHANGEABLE
Film,photographic
7025-01-522-5783FD-64-XT INTERCHANGEABLE
Memory Unit,data Storage
Diamond Systems Corp
2940-01-568-683736682 INTERCHANGEABLE
Filter,fluid
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
3040-01-600-7370 INTERCHANGEABLE
Cap,linear Actuating Cylinder
Cross-Reference Index
Part NumberManufacturer
28534 United Transformer Corp Sub of Opt Industries Inc (USA)
677-1339-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
124058 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
36682 Freed Transformer Co (USA)
28534A Emerson Electric Co White-Rodgers Div (USA)
Related Parts
5305-00-151-1580INTERCHANGEABLE
SCREW,MACHINE
3110-01-013-3083INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
6S2828
5910-01-016-0079INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
124-058
5306-01-051-8026INTERCHANGEABLE
BOLT,MACHINE
28534
6750-01-427-3020INTERCHANGEABLE
FILM,PHOTOGRAPHIC
7025-01-522-5783INTERCHANGEABLE
MEMORY UNIT,DATA STORAGE
FD-64-XT
2940-01-568-6837INTERCHANGEABLE
FILTER,FLUID
36682
3040-01-600-7370INTERCHANGEABLE
CAP,LINEAR ACTUATING CYLINDER

Frequently Asked Questions

What is NSN 5950-00-831-1748?

NSN 5950-00-831-1748 is a Transformer,audio Frequency, manufactured by United Transformer Corp Sub of Opt Industries Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-831-1748?

NSN 5950-00-831-1748 has 5 cross-referenced part numbers: 28534 (United Transformer Corp Sub of Opt Industries Inc), 677-1339-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 124058 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 36682 (Freed Transformer Co), 28534A (Emerson Electric Co White-Rodgers Div).

What NSN replaces 5950-00-831-1748?

There are 8 known substitutes for 5950-00-831-1748: 5305-00-151-1580, 3110-01-013-3083, 5910-01-016-0079 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28534?

Key specifications for 28534: Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT; Reliability Indicator: NOT ESTABLISHED; Overall Height: 1.687 INCHES NOMINAL IN; Impedance Rating in Ohms: 6100.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY. 19 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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