PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

72021Transformer,power

Inrcore, Llc Div Inrcore · NSN 5950-00-970-8061 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-970-8061 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-970-8061. Primary manufacturer part number: 72021.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT
  • Winding Operating Current: 70.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
  • Terminal Type and Quantity: 10 TAB, SOLDER LUG
  • Body Height: 2.375 INCHES NOMINAL IN
  • Winding Operating Voltage: 199.20 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
  • Winding Shielding Method: INTERNAL SHIELD BROUGHT OUT TO TERMINAL 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 5950-00-970-8061, 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 Inrcore, Llc Div Inrcore. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-970-8061
Primary Part Number72021
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerInrcore, Llc Div Inrcore
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Operating Current70.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Terminal Type and Quantity10 TAB, SOLDER LUG
Body Height2.375 INCHES NOMINAL IN
Winding Operating Voltage199.20 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage34.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Operating Current400.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Thread Quantity Per Inch32 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Voltage30.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3120-00-293-428072021 INTERCHANGEABLE
Bearing,sleeve
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
6515-01-243-590750-4570 INTERCHANGEABLE
Retractor,abdominal
Codman & Shurtleff Inc
7310-01-615-056672021 INTERCHANGEABLE
Heater,water and Ration
The Vollrath Company, L.l.c. Div Vollrath
Cross-Reference Index
Part NumberManufacturer
72021 Inrcore, Llc Div Inrcore (USA)
B86K0004 Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co (USA)
BDG15-2021 Inrcore, Llc Div Inrcore (USA)
Related Parts
3120-00-293-4280INTERCHANGEABLE
BEARING,SLEEVE
72021
6515-01-243-5907INTERCHANGEABLE
RETRACTOR,ABDOMINAL
50-4570
7310-01-615-0566INTERCHANGEABLE
HEATER,WATER AND RATION
72021

Frequently Asked Questions

What is NSN 5950-00-970-8061?

NSN 5950-00-970-8061 is a Transformer,power, manufactured by Inrcore, Llc Div Inrcore, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-970-8061?

NSN 5950-00-970-8061 has 3 cross-referenced part numbers: 72021 (Inrcore, Llc Div Inrcore), B86K0004 (Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co), BDG15-2021 (Inrcore, Llc Div Inrcore).

What NSN replaces 5950-00-970-8061?

There are 3 known substitutes for 5950-00-970-8061: 3120-00-293-4280, 6515-01-243-5907, 7310-01-615-0566. Verify interchangeability with system specifications before substitution.

What are the specifications of 72021?

Key specifications for 72021: Reliability Indicator: NOT ESTABLISHED; Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT; Overall Length: 1.625 INCHES NOMINAL IN; Winding Operating Current: 70.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY. 23 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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