The Winch,drum,power Operated, cataloged under National Stock Number 3950-01-501-4427, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3950-01-501-4427 |
| Primary Part Number | 701-7390238 ASSY 99 |
| Item Name | Winch,drum,power Operated |
| FSC / FSG | 3950 / 39 — Winches, Hoists, Cranes, and Derricks |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Drum Surface Design | GROOVED |
| Cooling Method | ANY ACCEPTABLE |
| Prime Mover Quantity | 1 |
| Drum Flange Diameter | 2.000 INCHES NOMINAL FIRST DRUM IN |
| Unable to Decode | UNABLE TO DECODE |
| Prime Mover Type | HYDRAULIC MOTOR |
| Operation Method | POWERED |
| Drum Diameter and Location | 19.250 INCHES NOMINAL FIRST DRUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 701-7390238 ASSY 99 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 701-7390238 | D/9 Drawing number reference only Naval Sea Systems Command |
| D2154-951 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 3950-01-501-4427 is a Winch,drum,power Operated, manufactured by Naval Sea Systems Command, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
NSN 3950-01-501-4427 has 1 manufacturer part number on file: 701-7390238 ASSY 99 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 3950-01-501-4429, 4030-01-501-5969. Verify interchangeability with system specifications before substitution.
Key specifications for 701-7390238 ASSY 99: Drum Surface Design: GROOVED; Cooling Method: ANY ACCEPTABLE; Prime Mover Quantity: 1; Drum Flange Diameter: 2.000 INCHES NOMINAL FIRST DRUM IN. 8 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.