PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1270-63Transformer,power

Frequency Electronics Inc · NSN 5950-00-045-6934 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-045-6934 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-045-6934. Primary manufacturer part number: 1270-63.
Features
  • Transformer,power — FSC 5950
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Operating Voltage: 34.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • Body Width: 1.937 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-045-6934, 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 Frequency Electronics Inc. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 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
NSN5950-00-045-6934
Primary Part Number1270-63
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFrequency Electronics Inc
StatusACTIVE
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage34.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Body Width1.937 INCHES NOMINAL IN
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Current50.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Terminal Type and Quantity6 STANDOFF, SOLDER LUG
Body Height1.812 INCHES NOMINAL IN
Body Length3.125 INCHES NOMINAL IN
Inclosure TypeHERMETICALLY SEALED
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Operating Voltage12.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Current0.5 AMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-540-49762810H34-047-3 INTERCHANGEABLE
Washer,flat
Us Army Aviation and Missile Command
5310-00-898-0156 INTERCHANGEABLE
Washer,key
5950-01-205-47425832084 INTERCHANGEABLE
Transformer,power
Naval Sea Systems Command
5977-01-469-196942442 INTERCHANGEABLE
Electrode
Dionex Corporation
3040-01-524-571042442 INTERCHANGEABLE
Cam,control
Moog Inc. Dba Ampac-Isp Corp
3040-01-698-722942442 INTERCHANGEABLE
Actuator,mechanical,nonaircraft
Exlar Corporation
Cross-Reference Index
Part NumberManufacturer
A1270-63REVB Frequency Electronics Inc (USA)
1270-63 PRIMARY Frequency Electronics Inc (USA)
127063 Centroid, Inc. Dba Centroid Inc (USA)
B1270-63 Frequency Electronics Inc (USA)
42442 Freed Transformer Co (USA)
A1270-63 Frequency Electronics Inc (USA)
171801 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
A1270-63B PRIMARY Centroid, Inc. Dba Centroid Inc (USA)
Related Parts
5310-00-540-4976INTERCHANGEABLE
WASHER,FLAT
2810H34-047-3
5310-00-898-0156INTERCHANGEABLE
WASHER,KEY
5950-01-205-4742INTERCHANGEABLE
TRANSFORMER,POWER
5832084
5977-01-469-1969INTERCHANGEABLE
ELECTRODE
42442
3040-01-524-5710INTERCHANGEABLE
CAM,CONTROL
42442
3040-01-698-7229INTERCHANGEABLE
ACTUATOR,MECHANICAL,NONAIRCRAFT
42442

Frequently Asked Questions

What is NSN 5950-00-045-6934?

NSN 5950-00-045-6934 is a Transformer,power, manufactured by Frequency Electronics Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-045-6934?

NSN 5950-00-045-6934 has 8 cross-referenced part numbers: A1270-63REVB (Frequency Electronics Inc), 1270-63 (Frequency Electronics Inc), 127063 (Centroid, Inc. Dba Centroid Inc), B1270-63 (Frequency Electronics Inc), 42442 (Freed Transformer Co) and 3 more.

What NSN replaces 5950-00-045-6934?

There are 6 known substitutes for 5950-00-045-6934: 5310-00-540-4976, 5310-00-898-0156, 5950-01-205-4742 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1270-63?

Key specifications for 1270-63: Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Winding Operating Voltage: 34.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY; Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP. 20 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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