PartsTable TECHNICAL DATA SHEET
NSN 3950-01-006-4738Government record, cited

Safety Lock Clutch3950-01-006-4738

NSN 3950-01-006-4738 · NIIN 010064738 · Part number 11-98449-20
Curtiss-Wright Controls, Inc. Div Actuation Division · FSC 3950 — Winches, Hoists, Cranes, and Derricks · FSG 39 — Materials Handling Equipment · CAGE 0AHP5
Government record, cited
NSN 3950-01-006-4738 — this item is cataloged by the U.S. Government under National Stock Number 3950-01-006-4738. Manufacturer of record part number: 11-98449-20.
Also searched as  3950-01-006-4738 · 3950010064738 · NIIN 010064738 · 01-006-4738 · FSC 3950 Winches, Hoists, Cranes, and Derricks · CAGE 0AHP5 · 11-98449-20
Nearby stock numbers  ·
Features
  • Safety Lock Clutch — FSC 3950
  • General Characteristics Item Description: STEEL,ASSEMBLED CONSTRUCTION,6.239 IN. MIN,6.249 IN. MAX. O/A LG,3.750 IN. CLUTCH DIA,0.746 IN. MIN,0.748 IN. MAX. INPUT SHAFT DIA,1.187 IN. MIN,1.188 IN. MAX OUTPUT @SHAFT DIA,600 LB TORQUE CAPACITY LBS
  • 1 manufacturer part number on file
  • Manufacturer of record: Curtiss-Wright Controls, Inc. Div Actuation Division
Identification
  • NSN: 3950-01-006-4738
  • NIIN: 010064738
  • FSC: 3950 — Winches, Hoists, Cranes, and Derricks
  • FSG: 39 — Materials Handling Equipment
  • Primary part number: 11-98449-20
  • Manufacturer: Curtiss-Wright Controls, Inc. Div Actuation Division
General Description

The Safety Lock Clutch, cataloged under National Stock Number 3950-01-006-4738, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. The manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3950-01-006-4738
Primary Part Number11-98449-20
Item NameSafety Lock Clutch
FSC / FSG3950 / 39 — Winches, Hoists, Cranes, and Derricks
ManufacturerCurtiss-Wright Controls, Inc. Div Actuation Division
StatusACTIVE
General Characteristics Item DescriptionSTEEL,ASSEMBLED CONSTRUCTION,6.239 IN. MIN,6.249 IN. MAX. O/A LG,3.750 IN. CLUTCH DIA,0.746 IN. MIN,0.748 IN. MAX. INPUT SHAFT DIA,1.187 IN. MIN,1.188 IN. MAX OUTPUT @SHAFT DIA,600 LB TORQUE CAPACITY LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
11-98449-20 PRIMARY Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
No interchangeability data on file.
Other items in FSC 3950 — Winches, Hoists, Cranes, and Derricks
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3950-00-001-1249
LINING,FRICTION
3950-00-001-3984
3950-00-001-3984 · Item name not on file
3950-00-001-6303
3950-00-001-6303 · Item name not on file
3950-00-001-6304
3950-00-001-6304 · Item name not on file
3950-00-001-6312
3950-00-001-6312 · Item name not on file
3950-00-001-6313
HOIST,TRUCK
3950-00-001-7831
3950-00-001-7831 · Item name not on file
3950-00-001-7834
COOLING COIL,WINCH

Frequently Asked Questions

What is NSN 3950-01-006-4738?

NSN 3950-01-006-4738 is a Safety Lock Clutch, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.

What part numbers are listed for NSN 3950-01-006-4738?

NSN 3950-01-006-4738 has 1 manufacturer part number on file: 11-98449-20 (Curtiss-Wright Controls, Inc. Div Actuation Division).

What are the specifications of 11-98449-20?

Key specifications for 11-98449-20: General Characteristics Item Description: STEEL,ASSEMBLED CONSTRUCTION,6.239 IN. MIN,6.249 IN. MAX. O/A LG,3.750 IN. CLUTCH DIA,0.746 IN. MIN,0.748 IN. MAX. INPUT SHAFT DIA,1.187 IN. MIN,1.188 IN. MAX OUTPUT @SHAFT DIA,600 LB TORQUE CAPACITY LBS. 1 specification is documented in the U.S. Government catalog.

Is NSN 3950-01-006-4738 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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