PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18-440Transformer,power

Leach International Corp Div Leach International Corporation · NSN 5950-00-807-2758 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-807-2758 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-807-2758. Primary manufacturer part number: 18-440.
Features
  • Transformer,power — FSC 5950
  • Frequency Rating: 60.0 HERTZ NOMINAL SINGLE COMPONENT
  • Body Height: 3.500 INCHES MAXIMUM IN
  • Mounting Method: FLANGE AND SLOT SINGLE GROUP
  • Inclosure Type: OPEN
  • Terminal Type and Quantity: 7 WIRE LEAD
  • Body Width: 5.000 INCHES MAXIMUM IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER 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 5950-00-807-2758, 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 Leach International Corp Div Leach International Corporation. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-807-2758
Primary Part Number18-440
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLeach International Corp Div Leach International Corporation
StatusACTIVE
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Body Height3.500 INCHES MAXIMUM IN
Mounting MethodFLANGE AND SLOT SINGLE GROUP
Inclosure TypeOPEN
Terminal Type and Quantity7 WIRE LEAD
Body Width5.000 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Width2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Length4.500 INCHES MAXIMUM IN
Maximum Operating Temp50.0 CELSIUS DEGC
Winding Function and Quantity2 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Voltage220.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
Mounting Facility Quantity4 SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length4.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage42.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Mounting Slot Width0.188 INCHES NOMINAL SINGLE GROUP IN
Winding Operating Current4.8 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5935-00-333-8119922555-1C INTERCHANGEABLE
Connector,plug,electrical
Raytheon Company Dba Raytheon
6105-00-477-2094 INTERCHANGEABLE
Motor,alternating Current
4820-00-595-3669285696N INTERCHANGEABLE
Cock,plug
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
5340-00-816-93091-8 4-140 INTERCHANGEABLE
Clamp,loop
Brady United States
6515-01-370-223265-3191 INTERCHANGEABLE
Hook,tenotomy
Sklar Corporation Dba Sklar Instruments
6680-01-548-0918160-10 INTERCHANGEABLE
Meter Kit,flow Rate Indicating
Parker Hannifin Corporation Div Village Marine Tech
2590-01-577-323718440-01 INTERCHANGEABLE
Control Unit,fire Suppression
Amerex Corporation Dba Amerex Corp
5935-01-616-891618440 INTERCHANGEABLE
Connector,plug,electrical
Applied Avionics, Llc Dba Applied Avionics, Inc
Cross-Reference Index
Part NumberManufacturer
18-440 PRIMARY Leach International Corp Div Leach International Corporation (USA)
10054625 Us Army Aviation and Missile Command (USA)
Related Parts
5935-00-333-8119INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
922555-1C
6105-00-477-2094INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
4820-00-595-3669INTERCHANGEABLE
COCK,PLUG
285696N
5340-00-816-9309INTERCHANGEABLE
CLAMP,LOOP
1-8 4-140
6515-01-370-2232INTERCHANGEABLE
HOOK,TENOTOMY
65-3191
6680-01-548-0918INTERCHANGEABLE
METER KIT,FLOW RATE INDICATING
160-10
2590-01-577-3237INTERCHANGEABLE
CONTROL UNIT,FIRE SUPPRESSION
18440-01
5935-01-616-8916INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
18440

Frequently Asked Questions

What is NSN 5950-00-807-2758?

NSN 5950-00-807-2758 is a Transformer,power, manufactured by Leach International Corp Div Leach International Corporation, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-807-2758?

NSN 5950-00-807-2758 has 2 cross-referenced part numbers: 18-440 (Leach International Corp Div Leach International Corporation), 10054625 (Us Army Aviation and Missile Command).

What NSN replaces 5950-00-807-2758?

There are 8 known substitutes for 5950-00-807-2758: 5935-00-333-8119, 6105-00-477-2094, 4820-00-595-3669 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18-440?

Key specifications for 18-440: Frequency Rating: 60.0 HERTZ NOMINAL SINGLE COMPONENT; Body Height: 3.500 INCHES MAXIMUM IN; Mounting Method: FLANGE AND SLOT SINGLE GROUP; Inclosure Type: OPEN. 18 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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