PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E7505Transformer,power

United Transformer Corp Sub of Opt Industries Inc · NSN 5950-00-645-6501 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-6501 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-6501. Primary manufacturer part number: E7505.
Features
  • Transformer,power — FSC 5950
  • Winding Shielding Method: INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
  • Terminal Type and Quantity: 9 STANDOFF INSULATOR
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 4.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Function and Quantity: 2 PRIMARY AND 1 SECONDARY 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 5950-00-645-6501, 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 United Transformer Corp Sub of Opt Industries Inc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-645-6501
Primary Part NumberE7505
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerUnited Transformer Corp Sub of Opt Industries Inc
StatusCANCELLED
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
Terminal Type and Quantity9 STANDOFF INSULATOR
Center to Center Distance Between Mounting Facilities Parallel to Width4.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity2 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Mounting Facility Quantity6 SINGLE GROUP
Mounting Hole Diameter0.234 INCHES NOMINAL SINGLE GROUP IN
Body Width4.000 INCHES NOMINAL IN
Body Length4.500 INCHES NOMINAL IN
Body Height5.125 INCHES NOMINAL IN
Winding Operating Voltage80.00 AC VOLTS NOMINAL AND 200.00 AC VOLTS NOMINAL AND 280.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Winding Operating Current150.0 MILLIAMPERES AC MAXIMUM AND 500.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
4320-00-248-023518071 INTERCHANGEABLE
Sleeve,shaft,pump
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5133-00-266-9243 INTERCHANGEABLE
Drill,twist
4730-00-767-903110866372 INTERCHANGEABLE
Coupling Assembly,quick Disconne
U S Army Tank Automotive Command Amsta-Im-Mm
5945-01-132-9044 INTERCHANGEABLE
Seat,armature
2530-01-275-006518071 INTERCHANGEABLE
Stabilizer Link
Trw Inc Trw Intl Trade Government Sales Dept
Cross-Reference Index
Part NumberManufacturer
E7505 United Transformer Corp Sub of Opt Industries Inc (USA)
672-0530-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
18071 Emerson Electric Co White-Rodgers Div (USA)
Related Parts
4320-00-248-0235INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
18071
5133-00-266-9243INTERCHANGEABLE
DRILL,TWIST
4730-00-767-9031INTERCHANGEABLE
COUPLING ASSEMBLY,QUICK DISCONNE
10866372
5945-01-132-9044INTERCHANGEABLE
SEAT,ARMATURE
2530-01-275-0065INTERCHANGEABLE
STABILIZER LINK
18071

Frequently Asked Questions

What is NSN 5950-00-645-6501?

NSN 5950-00-645-6501 is a Transformer,power, manufactured by United Transformer Corp Sub of Opt Industries Inc, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-645-6501?

NSN 5950-00-645-6501 has 3 cross-referenced part numbers: E7505 (United Transformer Corp Sub of Opt Industries Inc), 672-0530-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 18071 (Emerson Electric Co White-Rodgers Div).

What NSN replaces 5950-00-645-6501?

There are 5 known substitutes for 5950-00-645-6501: 4320-00-248-0235, 5133-00-266-9243, 4730-00-767-9031 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E7505?

Key specifications for E7505: Winding Shielding Method: INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT; Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP; Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY; Terminal Type and Quantity: 9 STANDOFF INSULATOR. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-645-6501 still in active supply?

NSN 5950-00-645-6501 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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