PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

77C701597P1Transformer,audio Frequency

Lockheed Martin Corporation Div Rms · NSN 5950-00-078-1786 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-078-1786 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-078-1786. Primary manufacturer part number: 77C701597P1.
Features
  • Transformer,audio Frequency — FSC 5950
  • Impedance Rating in Ohms: 50.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Winding Operating Current: 3.25 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Primary to Secondary Turn Ratio: 1 TO 1 SINGLE COMPONENT
  • Impedance Rating in Ohms: 50.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Frequency Rating: 5.0 KILOHERTZ MINIMUM AND 300.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
  • Inclosure Type: FULLY INCLOSED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-078-1786, 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 Lockheed Martin Corporation Div Rms. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-078-1786
Primary Part Number77C701597P1
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Impedance Rating in Ohms50.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Operating Current3.25 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Primary to Secondary Turn Ratio1 TO 1 SINGLE COMPONENT
Impedance Rating in Ohms50.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Frequency Rating5.0 KILOHERTZ MINIMUM AND 300.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Body Height0.310 INCHES MAXIMUM IN
Mounting MethodTERMINAL SINGLE GROUP
Body Width0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
Reliability IndicatorNOT ESTABLISHED
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
Body Length0.485 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Terminal Type and Quantity5 WIRE LEAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5305-00-448-164378103 INTERCHANGEABLE
Screw,machine
Telemechanics Inc
2530-00-554-8775D3-803 INTERCHANGEABLE
Wheel Assembly,pneumatic Tire
Goodrich Corporation
5307-01-288-26717-8103 INTERCHANGEABLE
Stud,continuous Thread
Aqua-Chem, Inc. Dba Aqua-Chem Inc
5915-01-339-70593322848-1 INTERCHANGEABLE
Filter,radio Frequency Interfere
L3 Technologies, Inc. Div Ocean Systems
2995-01-711-167178103 INTERCHANGEABLE
Installation Kit,engine Accessor
Williams International Co., L.l.c.
Cross-Reference Index
Part NumberManufacturer
78-103 Vernitron Corp Aie Magnetics Div (USA)
77C701597P1 PRIMARY Lockheed Martin Corporation Div Rms (USA)
0780103 Vernitron Corp Aie Magnetics Div (USA)
77C701597P001 Lockheed Martin Corporation Div Rms (USA)
Related Parts
5305-00-448-1643INTERCHANGEABLE
SCREW,MACHINE
78103
2530-00-554-8775INTERCHANGEABLE
WHEEL ASSEMBLY,PNEUMATIC TIRE
D3-803
5307-01-288-2671INTERCHANGEABLE
STUD,CONTINUOUS THREAD
7-8103
5915-01-339-7059INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
3322848-1
2995-01-711-1671INTERCHANGEABLE
INSTALLATION KIT,ENGINE ACCESSOR
78103

Frequently Asked Questions

What is NSN 5950-00-078-1786?

NSN 5950-00-078-1786 is a Transformer,audio Frequency, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-078-1786?

NSN 5950-00-078-1786 has 4 cross-referenced part numbers: 78-103 (Vernitron Corp Aie Magnetics Div), 77C701597P1 (Lockheed Martin Corporation Div Rms), 0780103 (Vernitron Corp Aie Magnetics Div), 77C701597P001 (Lockheed Martin Corporation Div Rms).

What NSN replaces 5950-00-078-1786?

There are 5 known substitutes for 5950-00-078-1786: 5305-00-448-1643, 2530-00-554-8775, 5307-01-288-2671 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 77C701597P1?

Key specifications for 77C701597P1: Impedance Rating in Ohms: 50.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY; Winding Operating Current: 3.25 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY; Primary to Secondary Turn Ratio: 1 TO 1 SINGLE COMPONENT; Impedance Rating in Ohms: 50.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY. 14 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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