PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19621Transformer,power

Robert M. Hadley Company, Inc. · NSN 5950-01-165-1975 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-165-1975 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-165-1975. Primary manufacturer part number: 19621.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Voltage: 10.06 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
  • Nominal Thread Size: 0.112 INCHES SINGLE GROUP IN
  • Inclosure Type: FULLY INCLOSED
  • Frequency Rating: 330.0 HERTZ MINIMUM AND 6000.0 HERTZ MAXIMUM SINGLE COMPONENT
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • 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 5950-01-165-1975, 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 Robert M. Hadley Company, Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-165-1975
Primary Part Number19621
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRobert M. Hadley Company, Inc.
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Winding Operating Voltage10.06 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Inclosure TypeFULLY INCLOSED
Frequency Rating330.0 HERTZ MINIMUM AND 6000.0 HERTZ MAXIMUM SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage12.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
Winding Operating Current172.25 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT ALL PRIMARY
Mounting Facility Quantity1 SINGLE GROUP
Thread Quantity Per Inch40 SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Terminal Type and Quantity8 WIRE LEAD
Winding Function and Quantity2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6240-00-013-1282 INTERCHANGEABLE
Lamp,incandescent
2530-00-028-2533234189 INTERCHANGEABLE
Diaphragm,chamber,brake
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
4820-00-036-1742005-101-0008 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-00-070-6928381-6 PL0856-B0 INTERCHANGEABLE
Valve,angle
Admiral Valve Llc Dba Cpv Manufacturing
5355-00-090-333319621 INTERCHANGEABLE
Dial,control
Raytheon Company Dba Raytheon
4330-00-118-55281R0728 INTERCHANGEABLE
Filter Element,fluid
Caterpillar Inc Div Caterpillar Defense
4310-00-148-54881816 INTERCHANGEABLE
Plate,compressor
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
6240-00-155-7949 INTERCHANGEABLE
Lamp,incandescent
5120-00-357-5853 INTERCHANGEABLE
Extractor Set,screw
3655-00-394-7780181-6 INTERCHANGEABLE
Glass,cover
Cameron Energy Services Corp.
Cross-Reference Index
Part NumberManufacturer
446-0826-001 The Boeing Company Div Legacy Boeing Hb1 (USA)
19621 PRIMARY Robert M. Hadley Company, Inc. (USA)
1816 PRIMARY Standard Industries (USA)
TX06-109 Electro-Numerics, Inc. Div Cra Enterprises (USA)
Related Parts
6240-00-013-1282INTERCHANGEABLE
LAMP,INCANDESCENT
2530-00-028-2533INTERCHANGEABLE
DIAPHRAGM,CHAMBER,BRAKE
234189
4820-00-036-1742INTERCHANGEABLE
DISK,VALVE
005-101-0008
4820-00-070-6928INTERCHANGEABLE
VALVE,ANGLE
381-6 PL0856-B0
5355-00-090-3333INTERCHANGEABLE
DIAL,CONTROL
19621
4330-00-118-5528INTERCHANGEABLE
FILTER ELEMENT,FLUID
1R0728
4310-00-148-5488INTERCHANGEABLE
PLATE,COMPRESSOR
1816
6240-00-155-7949INTERCHANGEABLE
LAMP,INCANDESCENT
5120-00-357-5853INTERCHANGEABLE
EXTRACTOR SET,SCREW
3655-00-394-7780INTERCHANGEABLE
GLASS,COVER
181-6
5330-00-399-6984INTERCHANGEABLE
GASKET
QD631
6515-00-448-5179INTERCHANGEABLE
MASK,SURGICAL

Frequently Asked Questions

What is NSN 5950-01-165-1975?

NSN 5950-01-165-1975 is a Transformer,power, manufactured by Robert M. Hadley Company, Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-165-1975?

NSN 5950-01-165-1975 has 4 cross-referenced part numbers: 446-0826-001 (The Boeing Company Div Legacy Boeing Hb1), 19621 (Robert M. Hadley Company, Inc.), 1816 (Standard Industries), TX06-109 (Electro-Numerics, Inc. Div Cra Enterprises).

What NSN replaces 5950-01-165-1975?

There are 12 known substitutes for 5950-01-165-1975: 6240-00-013-1282, 2530-00-028-2533, 4820-00-036-1742 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 19621?

Key specifications for 19621: Overall Length: 1.270 INCHES NOMINAL IN; Overall Width: 1.270 INCHES NOMINAL IN; Overall Height: 0.900 INCHES NOMINAL IN; Reliability Indicator: NOT ESTABLISHED. 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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