PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

139723Sleeve,drum,winch

Macgregor Usa Inc. Div Macgregor Usa · NSN 3950-01-432-9451 · FSC 3950 · No Item Name Available
Verified by PartsTable
NSN 3950-01-432-9451 — this item is cataloged by the U.S. Government under National Stock Number 3950-01-432-9451. Primary manufacturer part number: 139723.
Features
  • Sleeve,drum,winch — FSC 3950
  • Capstan Spool Mounting Position: HORIZONTAL
  • Drum Surface Design: WHELPED
  • Capstan Spool Quantity: 1
  • Braking Method: MECHANICAL
  • 3 verified cross-references
  • Primary manufacturer: Macgregor Usa Inc. Div Macgregor Usa
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Sleeve,drum,winch, cataloged under National Stock Number 3950-01-432-9451, is classified within Federal Supply Class 3950 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Macgregor Usa Inc. Div Macgregor Usa. Government technical data includes 4 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3950-01-432-9451
Primary Part Number139723
Item NameSleeve,drum,winch
FSC / FSG3950 / 39 — No Item Name Available
ManufacturerMacgregor Usa Inc. Div Macgregor Usa
StatusACTIVE
Capstan Spool Mounting PositionHORIZONTAL
Drum Surface DesignWHELPED
Capstan Spool Quantity1
Braking MethodMECHANICAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4730-01-432-3532 INTERCHANGEABLE
Plug,pipe
5975-01-432-4405 INTERCHANGEABLE
Cabinet,electrical Equipment
3950-01-432-9450 INTERCHANGEABLE
Winch,drum,power Operated
3950-01-433-0012 INTERCHANGEABLE
Plate,nozzle,winch
3950-01-433-0026 INTERCHANGEABLE
Magnet,winch
3040-01-433-7126 INTERCHANGEABLE
Cylinder Assembly,actuating,line
3950-01-434-1494 INTERCHANGEABLE
Drum,winch
3040-01-434-2408 INTERCHANGEABLE
Pawl
3040-01-434-2411 INTERCHANGEABLE
Bracket,eye,nonrotating Shaft
3950-01-434-2415 INTERCHANGEABLE
Support,winch
Cross-Reference Index
Part NumberManufacturer
139723 Macgregor Usa Inc. Div Macgregor Usa (USA)
589-6953092 REV C IT 28 Military Sealift Command Dba Military Sealift Command Div Department of the Navy (USA)
589-6953092 Military Sealift Command Dba Military Sealift Command Div Department of the Navy (USA)
Related Parts
4730-01-432-3532INTERCHANGEABLE
PLUG,PIPE
5975-01-432-4405INTERCHANGEABLE
CABINET,ELECTRICAL EQUIPMENT
3950-01-432-9450INTERCHANGEABLE
WINCH,DRUM,POWER OPERATED
3950-01-433-0012INTERCHANGEABLE
PLATE,NOZZLE,WINCH
3950-01-433-0026INTERCHANGEABLE
MAGNET,WINCH
3040-01-433-7126INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
3950-01-434-1494INTERCHANGEABLE
DRUM,WINCH
3040-01-434-2408INTERCHANGEABLE
PAWL
3040-01-434-2411INTERCHANGEABLE
BRACKET,EYE,NONROTATING SHAFT
3950-01-434-2415INTERCHANGEABLE
SUPPORT,WINCH
4520-01-581-0152INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,IMMER
139723

Frequently Asked Questions

What is NSN 3950-01-432-9451?

NSN 3950-01-432-9451 is a Sleeve,drum,winch, manufactured by Macgregor Usa Inc. Div Macgregor Usa, classified under FSC 3950 (No Item Name Available). Status: active.

What are the part numbers for NSN 3950-01-432-9451?

NSN 3950-01-432-9451 has 3 cross-referenced part numbers: 139723 (Macgregor Usa Inc. Div Macgregor Usa), 589-6953092 REV C IT 28 (Military Sealift Command Dba Military Sealift Command Div Department of the Navy), 589-6953092 (Military Sealift Command Dba Military Sealift Command Div Department of the Navy).

What NSN replaces 3950-01-432-9451?

There are 11 known substitutes for 3950-01-432-9451: 4730-01-432-3532, 5975-01-432-4405, 3950-01-432-9450 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 139723?

Key specifications for 139723: Special Features: NAVY W/S CODE TH STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Capstan Spool Mounting Position: HORIZONTAL; Drum Surface Design: WHELPED; Capstan Spool Quantity: 1. 5 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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