PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

258H9683029-5Dynamotor

Lockheed Martin Corporation Div Rotary and Mission Systems · NSN 6125-00-643-4694 · FSC 6125 · No Item Name Available
Verified by PartsTable
NSN 6125-00-643-4694 — this item is cataloged by the U.S. Government under National Stock Number 6125-00-643-4694. Primary manufacturer part number: 258H9683029-5.
Features
  • Dynamotor — FSC 6125
  • Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S)
  • Nominal Center to Center Distance Between Mounting Facilities Parallel to Width: 3.875 INCHES IN
  • Current Rating in Amps: 0.010 FIRST MULTIPLE OR 0.070 SECOND MULTIPLE OUTPUT
  • Current Rating Method: NO LOAD
  • Connection Type and Voltage Rating in Volts: 60.0 LINE TO NEUTRAL FIRST MULTIPLE OR 350.0 LINE TO NEUTRAL SECOND MULTIPLE OUTPUT
  • Maximum Operating Altitude Rating: 50000.0 FEET FT
  • Duty Cycle: CONTINUOUS
Applications
  • Electrical power distribution
  • Generator and power systems
  • Industrial motor installations
General Description

The Dynamotor, cataloged under National Stock Number 6125-00-643-4694, is classified within Federal Supply Class 6125 (No Item Name Available) of the Electric Wire, Power, and Distribution Equipment group. The primary manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6125-00-643-4694
Primary Part Number258H9683029-5
Item NameDynamotor
FSC / FSG6125 / 61 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rotary and Mission Systems
StatusCANCELLED
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Nominal Center to Center Distance Between Mounting Facilities Parallel to Width3.875 INCHES IN
Current Rating in Amps0.010 FIRST MULTIPLE OR 0.070 SECOND MULTIPLE OUTPUT
Current Rating MethodNO LOAD
Connection Type and Voltage Rating in Volts60.0 LINE TO NEUTRAL FIRST MULTIPLE OR 350.0 LINE TO NEUTRAL SECOND MULTIPLE OUTPUT
Maximum Operating Altitude Rating50000.0 FEET FT
Duty CycleCONTINUOUS
Rotor Speed Rating in RPM7300.0 SINGLE NO LOAD
Temp Rating40.0 AMBIENT CELSIUS
Nominal Center to Center Distance Between Mounting Facilities Parallel to Length4.625 INCHES IN
Current Rating in Amps6.800 SINGLE INPUT
Connection Type and Voltage Rating in Volts27.5 LINE TO NEUTRAL SINGLE INPUT
Mounting MethodFIXED BASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5365-00-168-507224075 INTERCHANGEABLE
Spacer,ring
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
4320-00-184-923624075 INTERCHANGEABLE
Parts Kit,hydraulic Pump
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
5133-00-189-9253 INTERCHANGEABLE
Drill,twist
5998-00-231-965824075 INTERCHANGEABLE
Printed Wiring Board
Emcore Corporation Div Concord Division
1005-00-820-8199 INTERCHANGEABLE
Block Assy,locking
4320-00-906-979224075 INTERCHANGEABLE
Impeller and Shaft
Industrial Technologies and Services Llc
3040-01-151-6200 INTERCHANGEABLE
Cylinder Assembly,actuating,line
6110-01-213-317924075 INTERCHANGEABLE
Controller,motor
Ward Leonard Ct Llc
5998-01-362-950524065-12/00 INTERCHANGEABLE
Circuit Card Assembly
United States Department of the Navy Dba Naval Undersea Warfare Ctr Div
Cross-Reference Index
Part NumberManufacturer
DY99APW11 Joint Electronics Type Designation System (USA)
258H9683029-5 PRIMARY Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
258G7089005-39 Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
24075 Espey Mfg and Electronics Corp (USA)
Related Parts
5365-00-168-5072INTERCHANGEABLE
SPACER,RING
24075
4320-00-184-9236INTERCHANGEABLE
PARTS KIT,HYDRAULIC PUMP
24075
5133-00-189-9253INTERCHANGEABLE
DRILL,TWIST
5998-00-231-9658INTERCHANGEABLE
PRINTED WIRING BOARD
24075
1005-00-820-8199INTERCHANGEABLE
BLOCK ASSY,LOCKING
4320-00-906-9792INTERCHANGEABLE
IMPELLER AND SHAFT
24075
3040-01-151-6200INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
6110-01-213-3179INTERCHANGEABLE
CONTROLLER,MOTOR
24075
5998-01-362-9505INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
24065-12/00

Frequently Asked Questions

What is NSN 6125-00-643-4694?

NSN 6125-00-643-4694 is a Dynamotor, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 6125 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6125-00-643-4694?

NSN 6125-00-643-4694 has 4 cross-referenced part numbers: DY99APW11 (Joint Electronics Type Designation System), 258H9683029-5 (Lockheed Martin Corporation Div Rotary and Mission Systems), 258G7089005-39 (Lockheed Martin Corporation Div Rotary and Mission Systems), 24075 (Espey Mfg and Electronics Corp).

What NSN replaces 6125-00-643-4694?

There are 9 known substitutes for 6125-00-643-4694: 5365-00-168-5072, 4320-00-184-9236, 5133-00-189-9253 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 258H9683029-5?

Key specifications for 258H9683029-5: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Nominal Center to Center Distance Between Mounting Facilities Parallel to Width: 3.875 INCHES IN; Current Rating in Amps: 0.010 FIRST MULTIPLE OR 0.070 SECOND MULTIPLE OUTPUT; Current Rating Method: NO LOAD. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6125-00-643-4694 still in active supply?

NSN 6125-00-643-4694 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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