PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81643Transformer,power

Arma Div Ambac Industries Inc · NSN 5950-00-031-7941 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-031-7941 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-031-7941. Primary manufacturer part number: 81643.
Features
  • Transformer,power — FSC 5950
  • Body Length: 1.984 INCHES NOMINAL IN
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Mounting Method: BRACKET(S) AND THREADED HOLE(S) SINGLE GROUP
  • Terminal Type and Quantity: 5 WIRE LEAD
  • Reliability Indicator: NOT ESTABLISHED
  • Body Height: 1.443 INCHES NOMINAL IN
  • Inclosure Type: FULLY INCLOSED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-031-7941, 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 8 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-031-7941
Primary Part Number81643
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerArma Div Ambac Industries Inc
StatusACTIVE
Body Length1.984 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Mounting MethodBRACKET(S) AND THREADED HOLE(S) SINGLE GROUP
Terminal Type and Quantity5 WIRE LEAD
Reliability IndicatorNOT ESTABLISHED
Body Height1.443 INCHES NOMINAL IN
Inclosure TypeFULLY INCLOSED
Body Width1.697 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5330-01-091-6167 INTERCHANGEABLE
Gasket
5962-01-149-3182932366-1B INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Dba Raytheon
6145-01-203-329881643 INTERCHANGEABLE
Cable,power,electrical
General Cable Corporation Div Corporate
7021-01-670-229581643 INTERCHANGEABLE
Computer,digital
Aerovironment, Inc. Dba Aerovironment Inc
Cross-Reference Index
Part NumberManufacturer
81643 Arma Div Ambac Industries Inc
Related Parts
5330-01-091-6167INTERCHANGEABLE
GASKET
5962-01-149-3182INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
932366-1B
6145-01-203-3298INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
81643
7021-01-670-2295INTERCHANGEABLE
COMPUTER,DIGITAL
81643

Frequently Asked Questions

What is NSN 5950-00-031-7941?

NSN 5950-00-031-7941 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 5950-00-031-7941?

NSN 5950-00-031-7941 has 1 cross-referenced part number: 81643 (Arma Div Ambac Industries Inc).

What NSN replaces 5950-00-031-7941?

There are 4 known substitutes for 5950-00-031-7941: 5330-01-091-6167, 5962-01-149-3182, 6145-01-203-3298 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 81643?

Key specifications for 81643: Body Length: 1.984 INCHES NOMINAL IN; Mounting Facility Quantity: 4 SINGLE GROUP; Mounting Method: BRACKET(S) AND THREADED HOLE(S) SINGLE GROUP; Terminal Type and Quantity: 5 WIRE LEAD. 8 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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