PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7878Transformer,power

Magnetek Inc Lighting Products Group · NSN 5950-00-648-6167 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-648-6167 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-648-6167. Primary manufacturer part number: 7878.
Features
  • Transformer,power — FSC 5950
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Body Length: 6.500 INCHES NOMINAL IN
  • Inclosure Type: PARTIALLY INCLOSED, DOUBLE SHELL
  • Frequency Rating: 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 4.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 4.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-648-6167, 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 Magnetek Inc Lighting Products Group. Government technical data includes 12 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-648-6167
Primary Part Number7878
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerMagnetek Inc Lighting Products Group
StatusACTIVE
Mounting Facility Quantity4 SINGLE GROUP
Body Length6.500 INCHES NOMINAL IN
Inclosure TypePARTIALLY INCLOSED, DOUBLE SHELL
Frequency Rating50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width4.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length4.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Width6.500 INCHES NOMINAL IN
Terminal Type and Quantity20 WIRE LEAD
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Body Height5.000 INCHES NOMINAL IN
Winding Function and Quantity1 PRIMARY AND 7 SECONDARY SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5325-00-276-6089 INTERCHANGEABLE
Grommet,nonmetallic
3120-00-343-25307878 INTERCHANGEABLE
Bearing,sleeve
Cooper Machinery Services Llc
5305-00-477-3268 INTERCHANGEABLE
Setscrew
4820-01-124-67827878 ITEM 5 5IN INTERCHANGEABLE
Stem,fluid Valve
William E Williams Valve Corp
4820-01-127-25957878 NO 3 INTERCHANGEABLE
Seat,valve
William E Williams Valve Corp
4820-01-178-30907878 ITEM 5-2IN INTERCHANGEABLE
Stem,fluid Valve
William E Williams Valve Corp
4820-01-178-70237878 ITEM 3 INTERCHANGEABLE
Seat,valve
William E Williams Valve Corp
4820-01-182-08267878 ITEM 3 4IN INTERCHANGEABLE
Seat,valve
William E Williams Valve Corp
4820-01-182-16897878-6IN INTERCHANGEABLE
Valve,gate
William E Williams Valve Corp
4820-01-184-42787878 ITEM 3 3 IN INTERCHANGEABLE
Seat,valve
William E Williams Valve Corp
Cross-Reference Index
Part NumberManufacturer
7878 Magnetek Inc Lighting Products Group (USA)
WE3613 Magnetika Inc (USA)
WE3613 Wems Electronics Transformer Group (USA)
7878 Magnetek Inc Huntington Div (USA)
SDT1 Navcom Defense Electronics, Inc. (USA)
Related Parts
5325-00-276-6089INTERCHANGEABLE
GROMMET,NONMETALLIC
3120-00-343-2530INTERCHANGEABLE
BEARING,SLEEVE
7878
5305-00-477-3268INTERCHANGEABLE
SETSCREW
4820-01-124-6782INTERCHANGEABLE
STEM,FLUID VALVE
7878 ITEM 5 5IN
4820-01-127-2595INTERCHANGEABLE
SEAT,VALVE
7878 NO 3
4820-01-178-3090INTERCHANGEABLE
STEM,FLUID VALVE
7878 ITEM 5-2IN
4820-01-178-7023INTERCHANGEABLE
SEAT,VALVE
7878 ITEM 3
4820-01-182-0826INTERCHANGEABLE
SEAT,VALVE
7878 ITEM 3 4IN
4820-01-182-1689INTERCHANGEABLE
VALVE,GATE
7878-6IN
4820-01-184-4278INTERCHANGEABLE
SEAT,VALVE
7878 ITEM 3 3 IN
4820-01-210-1393INTERCHANGEABLE
DISK,VALVE
7878 ITEM 2 4IN
4820-01-210-4338INTERCHANGEABLE
STEM,FLUID VALVE
7878 ITEM 5 4IN

Frequently Asked Questions

What is NSN 5950-00-648-6167?

NSN 5950-00-648-6167 is a Transformer,power, manufactured by Magnetek Inc Lighting Products Group, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-648-6167?

NSN 5950-00-648-6167 has 5 cross-referenced part numbers: 7878 (Magnetek Inc Lighting Products Group), WE3613 (Magnetika Inc), WE3613 (Wems Electronics Transformer Group), 7878 (Magnetek Inc Huntington Div), SDT1 (Navcom Defense Electronics, Inc.).

What NSN replaces 5950-00-648-6167?

There are 12 known substitutes for 5950-00-648-6167: 5325-00-276-6089, 3120-00-343-2530, 5305-00-477-3268 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7878?

Key specifications for 7878: Mounting Facility Quantity: 4 SINGLE GROUP; Body Length: 6.500 INCHES NOMINAL IN; Inclosure Type: PARTIALLY INCLOSED, DOUBLE SHELL; Frequency Rating: 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com