PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

672-0257-00Transformer,power

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5950-00-646-2432 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-646-2432 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-646-2432. Primary manufacturer part number: 672-0257-00.
Features
  • Transformer,power — FSC 5950
  • Mounting Facility Quantity: 6 SINGLE GROUP
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Maximum Operating Temp: 105.0 CELSIUS DEGC
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 4.745 INCHES MINIMUM AND 4.755 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Operating Voltage: 208.00 AC VOLTS NOMINAL AND 230.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Inclosure Type: FULLY INCLOSED
  • Body Width: 4.555 INCHES MINIMUM AND 4.565 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-646-2432, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-646-2432
Primary Part Number672-0257-00
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusCANCELLED
Mounting Facility Quantity6 SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Maximum Operating Temp105.0 CELSIUS DEGC
Center to Center Distance Between Mounting Facilities Parallel to Length4.745 INCHES MINIMUM AND 4.755 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage208.00 AC VOLTS NOMINAL AND 230.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Inclosure TypeFULLY INCLOSED
Body Width4.555 INCHES MINIMUM AND 4.565 INCHES MAXIMUM IN
Winding Operating Current1.2 AMPERES AC NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Body Height5.297 INCHES MINIMUM AND 5.327 INCHES MAXIMUM IN
Winding Power Rating130.0 VOLTS-AMPERES SINGLE COMPONENT SINGLE SECONDARY
Body Length5.515 INCHES MINIMUM AND 5.525 INCHES MAXIMUM IN
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Mounting Hole Diameter0.225 INCHES MINIMUM AND 0.235 INCHES MAXIMUM SINGLE GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Width2.495 INCHES MINIMUM AND 2.505 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Voltage50.00 AC VOLTS NOMINAL AND 65.00 AC VOLTS NOMINAL AND 80.00 AC VOLTS NOMINAL AND 100.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 130.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity10 THREADED STUD
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
4820-00-141-91801286-5 INTERCHANGEABLE
Valve Asy,fuel,sele
Hydro-Aire Aerospace Corp
1620-00-397-054112875 INTERCHANGEABLE
Fitting,shock Strut
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
6625-00-510-458412875 INTERCHANGEABLE
Gear
Leica Inc Surveying and Photogrammetry Systems Div
5310-01-113-1310 INTERCHANGEABLE
Washer,flat
6150-01-231-235512875 INTERCHANGEABLE
Cable Assembly,special Purpose,e
The First Electronics Corporation
5306-01-397-875112875 INTERCHANGEABLE
Bolt,machine
Saginaw Products Corporation Dba Cignys
Cross-Reference Index
Part NumberManufacturer
672-0257-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
12875 Emerson Electric Co White-Rodgers Div (USA)
672-0257-000 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
4820-00-141-9180INTERCHANGEABLE
VALVE ASY,FUEL,SELE
1286-5
1620-00-397-0541INTERCHANGEABLE
FITTING,SHOCK STRUT
12875
6625-00-510-4584INTERCHANGEABLE
GEAR
12875
5310-01-113-1310INTERCHANGEABLE
WASHER,FLAT
6150-01-231-2355INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
12875
5306-01-397-8751INTERCHANGEABLE
BOLT,MACHINE
12875

Frequently Asked Questions

What is NSN 5950-00-646-2432?

NSN 5950-00-646-2432 is a Transformer,power, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-646-2432?

NSN 5950-00-646-2432 has 3 cross-referenced part numbers: 672-0257-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 12875 (Emerson Electric Co White-Rodgers Div), 672-0257-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).

What NSN replaces 5950-00-646-2432?

There are 6 known substitutes for 5950-00-646-2432: 4820-00-141-9180, 1620-00-397-0541, 6625-00-510-4584 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 672-0257-00?

Key specifications for 672-0257-00: Mounting Facility Quantity: 6 SINGLE GROUP; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Maximum Operating Temp: 105.0 CELSIUS DEGC; Center to Center Distance Between Mounting Facilities Parallel to Length: 4.745 INCHES MINIMUM AND 4.755 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-646-2432 still in active supply?

NSN 5950-00-646-2432 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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