PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15037Transformer,power

Freed Transformer Co · NSN 5950-00-257-1603 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-257-1603 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-257-1603. Primary manufacturer part number: 15037.
Features
  • Transformer,power — FSC 5950
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 6 SECONDARY SINGLE COMPONENT
  • Nominal Thread Size: 0.190 INCHES SINGLE GROUP IN
  • Terminal Type and Quantity: 16 TAB, SOLDER LUG
  • Body Height: 4.500 INCHES NOMINAL IN
  • Reliability Indicator: NOT ESTABLISHED
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 3.125 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 5950-00-257-1603, 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 Freed Transformer Co. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5950-00-257-1603
Primary Part Number15037
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Mounting Facility Quantity4 SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 6 SECONDARY SINGLE COMPONENT
Nominal Thread Size0.190 INCHES SINGLE GROUP IN
Terminal Type and Quantity16 TAB, SOLDER LUG
Body Height4.500 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Center to Center Distance Between Mounting Facilities Parallel to Length3.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeHERMETICALLY SEALED
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Body Length3.750 INCHES NOMINAL IN
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Thread Series DesignatorUNF SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width2.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Quantity Per Inch32 SINGLE GROUP
Body Width3.500 INCHES NOMINAL IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-042-8988 INTERCHANGEABLE
Plug,pipe
5331-00-057-0208 INTERCHANGEABLE
O-Ring
5841-00-090-3023 INTERCHANGEABLE
Arm,special
5133-00-189-9282 INTERCHANGEABLE
Drill,twist
5330-00-493-662246798B INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
3040-00-835-4524NW15037 INTERCHANGEABLE
Lever,remote Control
Tld Wollard Llc
6210-01-022-443415037 INTERCHANGEABLE
Lens,light
Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems
8145-01-045-585715037 INTERCHANGEABLE
Container,shipping
Naval Inventory Control Point
6520-01-106-093115037 INTERCHANGEABLE
Bur,dental,excavating
Ss White Burs Llc
4820-01-120-4530 INTERCHANGEABLE
Guide,valve
Cross-Reference Index
Part NumberManufacturer
15037 PRIMARY Freed Transformer Co (USA)
Related Parts
4730-00-042-8988INTERCHANGEABLE
PLUG,PIPE
5331-00-057-0208INTERCHANGEABLE
O-RING
5841-00-090-3023INTERCHANGEABLE
ARM,SPECIAL
5133-00-189-9282INTERCHANGEABLE
DRILL,TWIST
5330-00-493-6622INTERCHANGEABLE
GASKET
46798B
3040-00-835-4524INTERCHANGEABLE
LEVER,REMOTE CONTROL
NW15037
6210-01-022-4434INTERCHANGEABLE
LENS,LIGHT
15037
8145-01-045-5857INTERCHANGEABLE
CONTAINER,SHIPPING
15037
6520-01-106-0931INTERCHANGEABLE
BUR,DENTAL,EXCAVATING
15037
4820-01-120-4530INTERCHANGEABLE
GUIDE,VALVE
5340-01-179-2098INTERCHANGEABLE
CLAMP
1-5037
3040-01-194-2932INTERCHANGEABLE
SHAFT,SHOULDERED

Frequently Asked Questions

What is NSN 5950-00-257-1603?

NSN 5950-00-257-1603 is a Transformer,power, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-257-1603?

NSN 5950-00-257-1603 has 1 cross-referenced part number: 15037 (Freed Transformer Co).

What NSN replaces 5950-00-257-1603?

There are 12 known substitutes for 5950-00-257-1603: 4730-00-042-8988, 5331-00-057-0208, 5841-00-090-3023 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15037?

Key specifications for 15037: Mounting Facility Quantity: 4 SINGLE GROUP; Winding Function and Quantity: 1 PRIMARY AND 6 SECONDARY SINGLE COMPONENT; Nominal Thread Size: 0.190 INCHES SINGLE GROUP IN; Terminal Type and Quantity: 16 TAB, SOLDER LUG. 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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