PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26657-010Transformer,power

Wireless Data Corporation · NSN 5950-01-088-1522 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-088-1522 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-088-1522. Primary manufacturer part number: 26657-010.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Body Length: 3.437 INCHES MINIMUM AND 3.562 INCHES MAXIMUM IN
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Nominal Thread Size: 0.250 INCHES SINGLE GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-088-1522, 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 Wireless Data Corporation. Government technical data includes 21 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
NSN5950-01-088-1522
Primary Part Number26657-010
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerWireless Data Corporation
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Body Length3.437 INCHES MINIMUM AND 3.562 INCHES MAXIMUM IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Nominal Thread Size0.250 INCHES SINGLE GROUP IN
Winding Operating Voltage20.30 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage10.20 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Terminal Type and Quantity10 STANDOFF, SOLDER LUG
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Body Width2.937 INCHES MINIMUM AND 3.062 INCHES MAXIMUM IN
Body Height4.880 INCHES NOMINAL IN
Winding Operating Voltage32.50 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Maximum Transformer Power Rating100.0 WATTS SINGLE COMPONENT
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length2.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeHERMETICALLY SEALED
Center to Center Distance Between Mounting Facilities Parallel to Width2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6140-00-057-2553 INTERCHANGEABLE
Battery,storage
3010-00-773-1074 INTERCHANGEABLE
Coupling Half,shaft
1660-00-842-304826657-3 INTERCHANGEABLE
Parts Kit,regulator
Avox Systems Inc Dba Avox Systems Inc
5998-01-308-765726657-504 INTERCHANGEABLE
Circuit Card Assembly
Drs Advanced Isr, Llc
5975-01-424-852426657-1 INTERCHANGEABLE
Support,electrical Cable
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5975-01-424-852526657-2 INTERCHANGEABLE
Support,electrical Cable
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
Cross-Reference Index
Part NumberManufacturer
PEI 7635 Precision Electronics, Inc (USA)
26657 Laselco Pacific (USA)
26657-010 Exelis Inc. (USA)
26657 Exelis Inc. (USA)
26657-010 PRIMARY Wireless Data Corporation (USA)
Related Parts
6140-00-057-2553INTERCHANGEABLE
BATTERY,STORAGE
3010-00-773-1074INTERCHANGEABLE
COUPLING HALF,SHAFT
1660-00-842-3048INTERCHANGEABLE
PARTS KIT,REGULATOR
26657-3
5998-01-308-7657INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
26657-504
5975-01-424-8524INTERCHANGEABLE
SUPPORT,ELECTRICAL CABLE
26657-1
5975-01-424-8525INTERCHANGEABLE
SUPPORT,ELECTRICAL CABLE
26657-2

Frequently Asked Questions

What is NSN 5950-01-088-1522?

NSN 5950-01-088-1522 is a Transformer,power, manufactured by Wireless Data Corporation, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-088-1522?

NSN 5950-01-088-1522 has 5 cross-referenced part numbers: PEI 7635 (Precision Electronics, Inc), 26657 (Laselco Pacific), 26657-010 (Exelis Inc.), 26657 (Exelis Inc.), 26657-010 (Wireless Data Corporation).

What NSN replaces 5950-01-088-1522?

There are 6 known substitutes for 5950-01-088-1522: 6140-00-057-2553, 3010-00-773-1074, 1660-00-842-3048 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 26657-010?

Key specifications for 26657-010: Reliability Indicator: NOT ESTABLISHED; Body Length: 3.437 INCHES MINIMUM AND 3.562 INCHES MAXIMUM IN; Mounting Method: THREADED STUD(S) SINGLE GROUP; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP. 21 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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