PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BC99-33Transformer,power

Omega Associates, Inc. Dba Omega Associates Inc · NSN 5950-00-998-4076 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-998-4076 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-998-4076. Primary manufacturer part number: BC99-33.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Terminal Type and Quantity: 6 TAB, SOLDER LUG
  • Body Length: 3.500 INCHES NOMINAL IN
  • Winding Operating Voltage: 23.90 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Inclosure Type: FULLY INCLOSED
  • Winding Operating Voltage: 200.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-998-4076, 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 Omega Associates, Inc. Dba Omega Associates Inc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-998-4076
Primary Part NumberBC99-33
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerOmega Associates, Inc. Dba Omega Associates Inc
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Terminal Type and Quantity6 TAB, SOLDER LUG
Body Length3.500 INCHES NOMINAL IN
Winding Operating Voltage23.90 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Inclosure TypeFULLY INCLOSED
Winding Operating Voltage200.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Width1.870 INCHES NOMINAL IN
Winding Operating Current1.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Body Height2.880 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.440 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Frequency Rating380.0 HERTZ NOMINAL SINGLE COMPONENT
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Input-Output Phase RelationshipTHREE PHASE TO THREE PHASE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5315-00-054-209513404 INTERCHANGEABLE
Pin,straight,headless
Eaton Aerospace, Llc Dba Jackson South
6680-00-172-168913404 INTERCHANGEABLE
Screen Assembly
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
5975-00-265-77723707 INTERCHANGEABLE
Reducing Washer,knockout
Abb Installation Products Inc
5355-00-422-178613404 INTERCHANGEABLE
Knob
Time Manufacturing Company Dba Time Manufacturing Company
2810-00-448-661913404 INTERCHANGEABLE
Plug,oil Pressure
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
4920-00-669-872213404 INTERCHANGEABLE
Controller Assembly
Elbitamerica, Inc.
Cross-Reference Index
Part NumberManufacturer
59T11C1035 Omega Associates, Inc. Dba Omega Associates Inc (USA)
BC99-33 PRIMARY Omega Associates, Inc. Dba Omega Associates Inc (USA)
940D563-1 Sundstrand Corp Electric Power Systems Div (USA)
940D563-1 Hamilton Sundstrand Corporation (USA)
13404 Inrcore, Llc Div Inrcore (USA)
Related Parts
5315-00-054-2095INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
13404
6680-00-172-1689INTERCHANGEABLE
SCREEN ASSEMBLY
13404
5975-00-265-7772INTERCHANGEABLE
REDUCING WASHER,KNOCKOUT
3707
5355-00-422-1786INTERCHANGEABLE
KNOB
13404
2810-00-448-6619INTERCHANGEABLE
PLUG,OIL PRESSURE
13404
4920-00-669-8722INTERCHANGEABLE
CONTROLLER ASSEMBLY
13404

Frequently Asked Questions

What is NSN 5950-00-998-4076?

NSN 5950-00-998-4076 is a Transformer,power, manufactured by Omega Associates, Inc. Dba Omega Associates Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-998-4076?

NSN 5950-00-998-4076 has 5 cross-referenced part numbers: 59T11C1035 (Omega Associates, Inc. Dba Omega Associates Inc), BC99-33 (Omega Associates, Inc. Dba Omega Associates Inc), 940D563-1 (Sundstrand Corp Electric Power Systems Div), 940D563-1 (Hamilton Sundstrand Corporation), 13404 (Inrcore, Llc Div Inrcore).

What NSN replaces 5950-00-998-4076?

There are 6 known substitutes for 5950-00-998-4076: 5315-00-054-2095, 6680-00-172-1689, 5975-00-265-7772 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BC99-33?

Key specifications for BC99-33: Reliability Indicator: NOT ESTABLISHED; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Terminal Type and Quantity: 6 TAB, SOLDER LUG; Body Length: 3.500 INCHES NOMINAL IN. 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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