PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

70-77ATransformer,power

Valad Electric Heating Corp. · NSN 5950-01-233-0703 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-233-0703 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-233-0703. Primary manufacturer part number: 70-77A.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Current: 454.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Winding Operating Voltage: 440.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Body Height: 3.000 INCHES NOMINAL IN
  • Mounting Slot Width: 0.125 INCHES NOMINAL SINGLE GROUP IN
  • Winding Operating Current: 227.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-233-0703, 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 Valad Electric Heating Corp.. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-233-0703
Primary Part Number70-77A
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerValad Electric Heating Corp.
StatusACTIVE
Winding Operating Current454.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Voltage440.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Height3.000 INCHES NOMINAL IN
Mounting Slot Width0.125 INCHES NOMINAL SINGLE GROUP IN
Winding Operating Current227.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Mounting MethodSLOT SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Terminal Type and Quantity6 WIRE LEAD
Body Length2.000 INCHES NOMINAL IN
Inclosure TypeFULLY INCLOSED
Winding Operating Voltage110.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Body Width3.250 INCHES NOMINAL IN
Maximum Transformer Power Rating100.0 VOLT-AMPERE SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHEDNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5365-00-111-452112771 INTERCHANGEABLE
Spacer,ring
Aerosonic Llc
1730-00-185-291012771 INTERCHANGEABLE
End Cap Pin,knuckle Assembly
Time Manufacturing Company Dba Time Manufacturing Company
1650-00-674-446412771 INTERCHANGEABLE
Restrictor Assy
Saf Industries Llc Dba Saf Industries Llc Div Garkenyon
4820-00-723-877312771 INTERCHANGEABLE
Disk,valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
4610-01-060-3679VP-17-4200 INTERCHANGEABLE
Cartridge,de-Ionizer
Resintech Inc Dba Aries Filterworks Llc
5995-01-185-758312771 INTERCHANGEABLE
Cable Assembly,special Purpose,e
The First Electronics Corporation
5950-01-269-0707 INTERCHANGEABLE
Transformer,power
6145-01-384-089312771 INTERCHANGEABLE
Cable,special Purpose,electrical
Nexans Aerospace Usa Llc
5930-01-519-844012771 INTERCHANGEABLE
Switch,push
Itw Food Equipment Group Llc Dba Gaylord Industries
6130-01-596-312312771 INTERCHANGEABLE
Discharger,battery
Teledyne Flir Unmanned Ground Systems, Inc
Cross-Reference Index
Part NumberManufacturer
70-77A PRIMARY Valad Electric Heating Corp. (USA)
1277-1 Valad Electric Heating Corp. (USA)
Related Parts
5365-00-111-4521INTERCHANGEABLE
SPACER,RING
12771
1730-00-185-2910INTERCHANGEABLE
END CAP PIN,KNUCKLE ASSEMBLY
12771
1650-00-674-4464INTERCHANGEABLE
RESTRICTOR ASSY
12771
4820-00-723-8773INTERCHANGEABLE
DISK,VALVE
12771
4610-01-060-3679INTERCHANGEABLE
CARTRIDGE,DE-IONIZER
VP-17-4200
5995-01-185-7583INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
12771
5950-01-269-0707INTERCHANGEABLE
TRANSFORMER,POWER
6145-01-384-0893INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
12771
5930-01-519-8440INTERCHANGEABLE
SWITCH,PUSH
12771
6130-01-596-3123INTERCHANGEABLE
DISCHARGER,BATTERY
12771

Frequently Asked Questions

What is NSN 5950-01-233-0703?

NSN 5950-01-233-0703 is a Transformer,power, manufactured by Valad Electric Heating Corp., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-233-0703?

NSN 5950-01-233-0703 has 2 cross-referenced part numbers: 70-77A (Valad Electric Heating Corp.), 1277-1 (Valad Electric Heating Corp.).

What NSN replaces 5950-01-233-0703?

There are 10 known substitutes for 5950-01-233-0703: 5365-00-111-4521, 1730-00-185-2910, 1650-00-674-4464 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 70-77A?

Key specifications for 70-77A: Winding Operating Current: 454.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY; Mounting Facility Quantity: 4 SINGLE GROUP; Winding Operating Voltage: 440.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Body Height: 3.000 INCHES NOMINAL IN. 17 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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