PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A51Transformer,power

B G Laboratories Inc. · NSN 5950-00-432-5933 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-432-5933 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-432-5933. Primary manufacturer part number: A51.
Features
  • Transformer,power — FSC 5950
  • Distance Between Mounting Facility Centers: 1.594 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Inclosure Type: HERMETICALLY SEALED
  • Mounting Hole Diameter: 0.150 INCHES NOMINAL SINGLE GROUP IN
  • Mounting Facility Quantity: 2 SINGLE GROUP
  • Terminal Type and Quantity: 10 TURRET
  • Winding Operating Current: 100.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
  • Frequency Rating: 400.0 HERTZ NOMINAL 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 5950-00-432-5933, 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 B G Laboratories Inc.. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5950-00-432-5933
Primary Part NumberA51
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerB G Laboratories Inc.
StatusACTIVE
Distance Between Mounting Facility Centers1.594 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeHERMETICALLY SEALED
Mounting Hole Diameter0.150 INCHES NOMINAL SINGLE GROUP IN
Mounting Facility Quantity2 SINGLE GROUP
Terminal Type and Quantity10 TURRET
Winding Operating Current100.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Winding Operating Voltage4.20 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Operating Current100.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Winding Operating Current100.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Reliability IndicatorNOT ESTABLISHED
Body Length1.750 INCHES MAXIMUM IN
Body Outside Diameter1.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5975-00-290-4085142AL INTERCHANGEABLE
Locknut,electrical Conduit
Abb Installation Products Inc
3030-00-529-0352 INTERCHANGEABLE
Belt,v
3030-00-565-752666-2790A INTERCHANGEABLE
Belt,v
Ametek Inc Heat Transfer Div
4730-00-841-8411A51 INTERCHANGEABLE
Trap,steam
Nicholson Steam Trap Inc
4730-01-274-4826F117-005 INTERCHANGEABLE
Nozzle,sand Blast
Virgo Products Distribution Div Connie S. Trogdon
6350-01-695-7688A51 INTERCHANGEABLE
Receiver,alarm
Ascom (us) Inc.
Cross-Reference Index
Part NumberManufacturer
A51 PRIMARY B G Laboratories Inc. (USA)
71010054-001 Elbitamerica, Inc. (USA)
Related Parts
5975-00-290-4085INTERCHANGEABLE
LOCKNUT,ELECTRICAL CONDUIT
142AL
3030-00-529-0352INTERCHANGEABLE
BELT,V
3030-00-565-7526INTERCHANGEABLE
BELT,V
66-2790A
4730-00-841-8411INTERCHANGEABLE
TRAP,STEAM
A51
4730-01-274-4826INTERCHANGEABLE
NOZZLE,SAND BLAST
F117-005
6350-01-695-7688INTERCHANGEABLE
RECEIVER,ALARM
A51

Frequently Asked Questions

What is NSN 5950-00-432-5933?

NSN 5950-00-432-5933 is a Transformer,power, manufactured by B G Laboratories Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-432-5933?

NSN 5950-00-432-5933 has 2 cross-referenced part numbers: A51 (B G Laboratories Inc.), 71010054-001 (Elbitamerica, Inc.).

What NSN replaces 5950-00-432-5933?

There are 6 known substitutes for 5950-00-432-5933: 5975-00-290-4085, 3030-00-529-0352, 3030-00-565-7526 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A51?

Key specifications for A51: Distance Between Mounting Facility Centers: 1.594 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Inclosure Type: HERMETICALLY SEALED; Mounting Hole Diameter: 0.150 INCHES NOMINAL SINGLE GROUP IN; Mounting Facility Quantity: 2 SINGLE GROUP. 16 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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