PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

102721Transformer,power

Arma Div Ambac Industries Inc · NSN 5950-00-646-5522 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-646-5522 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-646-5522. Primary manufacturer part number: 102721.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Voltage: 1.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Body Height: 1.688 INCHES NOMINAL IN
  • Body Width: 1.688 INCHES NOMINAL IN
  • Body Length: 2.172 INCHES NOMINAL IN
  • Winding Operating Voltage: 0.37 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Winding Function and Quantity: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
  • Winding Operating Voltage: 0.12 AC VOLTS NOMINAL AND 0.44 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-646-5522, 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 Arma Div Ambac Industries Inc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5950-00-646-5522
Primary Part Number102721
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerArma Div Ambac Industries Inc
StatusACTIVE
Winding Operating Voltage1.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Height1.688 INCHES NOMINAL IN
Body Width1.688 INCHES NOMINAL IN
Body Length2.172 INCHES NOMINAL IN
Winding Operating Voltage0.37 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Winding Operating Voltage0.12 AC VOLTS NOMINAL AND 0.44 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Winding Operating Voltage0.833 AC VOLTS NOMINAL AND 1.48 AC VOLTS NOMINAL AND 2.22 AC VOLTS NOMINAL AND 2.96 AC VOLTS NOMINAL AND 3.70 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Shielding MethodCORE GROUNDED AND BROUGHT OUT TO TERMINAL AND INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Terminal Type and Quantity15 SOLDER STUD
Reliability IndicatorNOT ESTABLISHED
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5999-00-283-399816T1879 INTERCHANGEABLE
Cap,electrical
Chief of Engineers Dept of Army
5930-00-777-603610272-1 INTERCHANGEABLE
Guard,switch
Grimes Aerospace Company
6125-00-869-433610272-1 INTERCHANGEABLE
Circuit Board,stati
Kurz & Root Generator Company, Llc
5305-01-035-6705102721 INTERCHANGEABLE
Screw,cap,socket Head
Triumph Engine Control Systems Llc
3010-01-174-9555BF10 3/4-3/4 INTERCHANGEABLE
Coupling,shaft,flexible
Altra Industrial Motion Corp.
4820-01-315-58322621-906-08IA INTERCHANGEABLE
Valve,globe
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-432-3154102721 INTERCHANGEABLE
Lever,forked,valve Cap
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
102721 Arma Div Ambac Industries Inc
Related Parts
5999-00-283-3998INTERCHANGEABLE
CAP,ELECTRICAL
16T1879
5930-00-777-6036INTERCHANGEABLE
GUARD,SWITCH
10272-1
6125-00-869-4336INTERCHANGEABLE
CIRCUIT BOARD,STATI
10272-1
5305-01-035-6705INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
102721
3010-01-174-9555INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
BF10 3/4-3/4
4820-01-315-5832INTERCHANGEABLE
VALVE,GLOBE
2621-906-08IA
4820-01-432-3154INTERCHANGEABLE
LEVER,FORKED,VALVE CAP
102721

Frequently Asked Questions

What is NSN 5950-00-646-5522?

NSN 5950-00-646-5522 is a Transformer,power, manufactured by Arma Div Ambac Industries Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-646-5522?

NSN 5950-00-646-5522 has 1 cross-referenced part number: 102721 (Arma Div Ambac Industries Inc).

What NSN replaces 5950-00-646-5522?

There are 7 known substitutes for 5950-00-646-5522: 5999-00-283-3998, 5930-00-777-6036, 6125-00-869-4336 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 102721?

Key specifications for 102721: Winding Operating Voltage: 1.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Body Height: 1.688 INCHES NOMINAL IN; Body Width: 1.688 INCHES NOMINAL IN; Body Length: 2.172 INCHES NOMINAL IN. 18 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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