PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-T-17221ATransformer,power

Sherjor Inc · NSN 5950-00-058-8676 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-058-8676 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-058-8676. Primary manufacturer part number: MIL-T-17221A.
Features
  • Transformer,power — FSC 5950
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Terminal Type and Quantity: 4 WIRE LEAD
  • Body Width: 7.812 INCHES NOMINAL IN
  • Body Length: 9.000 INCHES NOMINAL IN
  • Winding Operating Voltage: 230.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Frequency Rating: 60.0 HERTZ NOMINAL 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 5950-00-058-8676, 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 Sherjor Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 6 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
NSN5950-00-058-8676
Primary Part NumberMIL-T-17221A
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerSherjor Inc
StatusACTIVE
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Terminal Type and Quantity4 WIRE LEAD
Body Width7.812 INCHES NOMINAL IN
Body Length9.000 INCHES NOMINAL IN
Winding Operating Voltage230.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Mounting Hole Diameter0.438 INCHES NOMINAL SINGLE GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length8.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width7.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Maximum Transformer Power Rating3.0 KILOVOLT-AMPERE SINGLE COMPONENT
Body Height12.875 INCHES NOMINAL IN
Inclosure TypeFULLY INCLOSED
Cooling MethodSELF-COOLED
Winding Operating Voltage450.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-036-61735322 INTERCHANGEABLE
Transformer,power
Precision Electronics, Inc
5950-00-058-0650 INTERCHANGEABLE
Transformer,power
5950-00-172-5862 INTERCHANGEABLE
Transformer,power
5950-00-245-0996L-675A81 INTERCHANGEABLE
Transformer,power
Aq Transformer Solutions Inc.
5950-00-548-0462S6202-3103712GP3 INTERCHANGEABLE
Transformer,power
Naval Ship Systems Command
5950-00-548-0481S6202-3223863GP3 INTERCHANGEABLE
Transformer,power
Naval Ship Systems Command
5950-00-577-915602-77-2025 INTERCHANGEABLE
Transformer,power
Electric Boat Corporation Div General Dynamics Electric Boat
5950-00-682-3433S6202-3123470GP3 INTERCHANGEABLE
Transformer,power
Naval Ship Systems Command
5950-00-683-0510 INTERCHANGEABLE
Transformer,power
5950-00-725-3196 INTERCHANGEABLE
Transformer,power
Cross-Reference Index
Part NumberManufacturer
MIL-T-17221A Sherjor Inc (USA)
502-4686009ITEM1 Naval Ship Systems Command (USA)
5950PL2058659 Jednolity Indeks Materialowy - Uniform Material Index (POL)
E37321G2 Acme Electric Corp (USA)
MILT15108 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
S1366591A Westinghouse Electric Corp Medium Power Transformer Div (USA)
F-37231 Acme Electric Corp (USA)
T49541 Acme Electric Corp (USA)
F37321G2 Acme Electric Corp (USA)
Related Parts
5950-00-036-6173INTERCHANGEABLE
TRANSFORMER,POWER
5322
5950-00-058-0650INTERCHANGEABLE
TRANSFORMER,POWER
5950-00-172-5862INTERCHANGEABLE
TRANSFORMER,POWER
5950-00-245-0996INTERCHANGEABLE
TRANSFORMER,POWER
L-675A81
5950-00-548-0462INTERCHANGEABLE
TRANSFORMER,POWER
S6202-3103712GP3
5950-00-548-0481INTERCHANGEABLE
TRANSFORMER,POWER
S6202-3223863GP3
5950-00-577-9156INTERCHANGEABLE
TRANSFORMER,POWER
02-77-2025
5950-00-682-3433INTERCHANGEABLE
TRANSFORMER,POWER
S6202-3123470GP3
5950-00-683-0510INTERCHANGEABLE
TRANSFORMER,POWER
5950-00-725-3196INTERCHANGEABLE
TRANSFORMER,POWER
5950-00-754-8255INTERCHANGEABLE
TRANSFORMER,POWER
S6202-F-3103713-GR3
5950-00-878-0770INTERCHANGEABLE
TRANSFORMER,POWER
S6202F3226697GP4

Frequently Asked Questions

What is NSN 5950-00-058-8676?

NSN 5950-00-058-8676 is a Transformer,power, manufactured by Sherjor Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-058-8676?

NSN 5950-00-058-8676 has 9 cross-referenced part numbers: MIL-T-17221A (Sherjor Inc), 502-4686009ITEM1 (Naval Ship Systems Command), 5950PL2058659 (Jednolity Indeks Materialowy - Uniform Material Index), E37321G2 (Acme Electric Corp), MILT15108 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 4 more.

What NSN replaces 5950-00-058-8676?

There are 12 known substitutes for 5950-00-058-8676: 5950-00-036-6173, 5950-00-058-0650, 5950-00-172-5862 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-T-17221A?

Key specifications for MIL-T-17221A: Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Mounting Facility Quantity: 4 SINGLE GROUP; Terminal Type and Quantity: 4 WIRE LEAD; Body Width: 7.812 INCHES NOMINAL IN. 17 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com