PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4757Transformer,power

Baltimore Transformer Co · NSN 5950-00-102-6087 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-102-6087 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-102-6087. Primary manufacturer part number: 4757.
Features
  • Transformer,power — FSC 5950
  • Inclosure Type: HERMETICALLY SEALED
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Operating Current: 50.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Voltage: 135.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Body Height: 3.813 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 2.125 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,power, cataloged under National Stock Number 5950-00-102-6087, 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 Baltimore Transformer Co. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN5950-00-102-6087
Primary Part Number4757
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBaltimore Transformer Co
StatusACTIVE
Inclosure TypeHERMETICALLY SEALED
Center to Center Distance Between Mounting Facilities Parallel to Width1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Current50.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Reliability IndicatorNOT ESTABLISHED
Winding Operating Voltage135.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Body Height3.813 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Operating Current300.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Voltage105.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 125.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
Frequency Rating55.0 HERTZ MINIMUM AND 450.0 HERTZ MAXIMUM SINGLE COMPONENT
Winding Operating Voltage40.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Operating Current1.5 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Body Width2.375 INCHES NOMINAL IN
Body Length2.750 INCHES NOMINAL IN
Thread Quantity Per Inch32 SINGLE GROUP
Terminal Type and Quantity10 TAB, SOLDER LUG
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4710-00-123-1087L2004-10 INTERCHANGEABLE
Tube Assembly,metal
Lawrence Aviation Industries Dba Lawrence Aviation
3110-00-141-955813212E9783-1 INTERCHANGEABLE
Bearing,ball,annular
Cecom Lr Center
5330-00-338-2302300-010 INTERCHANGEABLE
Seal,plain
Bal Seal Engineering, Inc.
5365-00-424-25444757 INTERCHANGEABLE
Bushing,machine Thread
Carrier Corp
5950-00-495-25364757 INTERCHANGEABLE
Transformer,power
Precision Electronics, Inc
5325-00-597-43772D4757 INTERCHANGEABLE
Ring,retaining
Fwd Seagrave Holdings Lp
1680-00-679-20354757 INTERCHANGEABLE
Tube,elevation,seat
B/e Aerospace Inc Dba Interturbine
5985-00-816-4287712499-13 INTERCHANGEABLE
Coupler,directional
Raytheon Company Div Rmd Strategic
2995-00-906-7178DS-922451 INTERCHANGEABLE
Shaft Assembly
Eaton Aerospace, Llc Dba Jackson South
6515-01-137-846879-83013 INTERCHANGEABLE
Support,cervical
Djo Llc
Cross-Reference Index
Part NumberManufacturer
42765 Coast/advanced Chip Magnetics, Inc. (USA)
4757 PRIMARY Baltimore Transformer Co (USA)
BX-4757 Baltimore Transformer Co (USA)
300010 Airtronics Inc (USA)
Related Parts
4710-00-123-1087INTERCHANGEABLE
TUBE ASSEMBLY,METAL
L2004-10
3110-00-141-9558INTERCHANGEABLE
BEARING,BALL,ANNULAR
13212E9783-1
5330-00-338-2302INTERCHANGEABLE
SEAL,PLAIN
300-010
5365-00-424-2544INTERCHANGEABLE
BUSHING,MACHINE THREAD
4757
5950-00-495-2536INTERCHANGEABLE
TRANSFORMER,POWER
4757
5325-00-597-4377INTERCHANGEABLE
RING,RETAINING
2D4757
1680-00-679-2035INTERCHANGEABLE
TUBE,ELEVATION,SEAT
4757
5985-00-816-4287INTERCHANGEABLE
COUPLER,DIRECTIONAL
712499-13
2995-00-906-7178INTERCHANGEABLE
SHAFT ASSEMBLY
DS-922451
6515-01-137-8468INTERCHANGEABLE
SUPPORT,CERVICAL
79-83013
3950-01-245-2591INTERCHANGEABLE
HOIST,WIRE ROPE
4330-01-293-6220INTERCHANGEABLE
PARTS KIT,FLUID PRESSURE FILTER
3000-10

Frequently Asked Questions

What is NSN 5950-00-102-6087?

NSN 5950-00-102-6087 is a Transformer,power, manufactured by Baltimore Transformer Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-102-6087?

NSN 5950-00-102-6087 has 4 cross-referenced part numbers: 42765 (Coast/advanced Chip Magnetics, Inc.), 4757 (Baltimore Transformer Co), BX-4757 (Baltimore Transformer Co), 300010 (Airtronics Inc).

What NSN replaces 5950-00-102-6087?

There are 12 known substitutes for 5950-00-102-6087: 4710-00-123-1087, 3110-00-141-9558, 5330-00-338-2302 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4757?

Key specifications for 4757: Inclosure Type: HERMETICALLY SEALED; Center to Center Distance Between Mounting Facilities Parallel to Width: 1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Winding Operating Current: 50.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY; Reliability Indicator: NOT ESTABLISHED. 24 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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