PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5N79P/OPC3Transformer,power

Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc · NSN 6120-01-458-1975 · FSC 6120 · Power Supply
Verified by PartsTable
NSN 6120-01-458-1975 — this item is cataloged by the U.S. Government under National Stock Number 6120-01-458-1975. Primary manufacturer part number: 5N79P/OPC3.
Features
  • Transformer,power — FSC 6120
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVAL INVENTORY CONTROL POINT, MECHANICSBURG, ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • Criticality Code Justification: ZZZY
  • 8 verified cross-references
  • Primary manufacturer: Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
Applications
  • Electrical power distribution
  • Generator and power systems
  • Industrial motor installations
General Description

The Transformer,power, cataloged under National Stock Number 6120-01-458-1975, is classified within Federal Supply Class 6120 (Power Supply) of the Electric Wire, Power, and Distribution Equipment group. The primary manufacturer of record is Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 2 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
NSN6120-01-458-1975
Primary Part Number5N79P/OPC3
Item NameTransformer,power
FSC / FSG6120 / 61 — Power Supply
ManufacturerDrs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVAL INVENTORY CONTROL POINT, MECHANICSBURG, ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5905-01-221-5238 INTERCHANGEABLE
Resistor,spec
5961-01-242-6371 INTERCHANGEABLE
Semiconductor Device,diode
5950-01-299-9782 INTERCHANGEABLE
Coil,radio Frequency
5950-01-303-2929L04086 INTERCHANGEABLE
Transformer,power
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
5905-01-312-0971 INTERCHANGEABLE
Resistor,fixed,film
5910-01-313-2265 INTERCHANGEABLE
Capacitor,fixed,electrolytic
5905-01-317-8730 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Cross-Reference Index
Part NumberManufacturer
5N79P/OPC3 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
6N595PC6 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
6N565PC6 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
6N565PC6 Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (USA)
KHU2301-1 Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (USA)
KHU2301-1 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
5N74P/OPC9 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
6N723PC43 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
Related Parts
5905-01-221-5238INTERCHANGEABLE
RESISTOR,SPEC
5961-01-242-6371INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5950-01-299-9782INTERCHANGEABLE
COIL,RADIO FREQUENCY
5950-01-303-2929INTERCHANGEABLE
TRANSFORMER,POWER
L04086
5905-01-312-0971INTERCHANGEABLE
RESISTOR,FIXED,FILM
5910-01-313-2265INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
5905-01-317-8730INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT

Frequently Asked Questions

What is NSN 6120-01-458-1975?

NSN 6120-01-458-1975 is a Transformer,power, manufactured by Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc, classified under FSC 6120 (Power Supply). Status: active.

What are the part numbers for NSN 6120-01-458-1975?

NSN 6120-01-458-1975 has 8 cross-referenced part numbers: 5N79P/OPC3 (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc), 6N595PC6 (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc), 6N565PC6 (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc), 6N565PC6 (Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution), KHU2301-1 (Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution) and 3 more.

What NSN replaces 6120-01-458-1975?

There are 7 known substitutes for 6120-01-458-1975: 5905-01-221-5238, 5961-01-242-6371, 5950-01-299-9782 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5N79P/OPC3?

Key specifications for 5N79P/OPC3: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVAL INVENTORY CONTROL POINT, MECHANICSBURG, ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS; Criticality Code Justification: ZZZY. 2 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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