The Winch,drum,power Operated, cataloged under National Stock Number 3950-01-346-2722, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. The manufacturer of record is Mcelroy Marine Machinery. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3950-01-346-2722 |
| Primary Part Number | B-3681-90 |
| Item Name | Winch,drum,power Operated |
| FSC / FSG | 3950 / 39 — Winches, Hoists, Cranes, and Derricks |
| Manufacturer | Mcelroy Marine Machinery |
| Status | ACTIVE |
| Capstan Spool Style | SINGLE HEAD |
| Inclosure Type | FULLY INCLOSED |
| Capstan Spool Quantity | 1 |
| Drum Surface Design | PLAIN |
| Braking Method | MANUAL |
| Cooling Method | AIR TO AIR COOLED |
| Prime Mover Quantity | 1 |
| Capstan Spool Surface Design | PLAIN |
| Capstan Spool Mounting Position | HORIZONTAL |
| Prime Mover Type | ELECTRIC MOTOR |
| Operation Method | POWERED |
| 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 |
|---|---|
| B-3681-90 PRIMARY | Mcelroy Marine Machinery (USA) |
| Reference | Meaning |
|---|---|
| B-3681-90 SERIES 10 | 5/9 Secondary reference Mcelroy Marine Machinery |
NSN 3950-01-346-2722 is a Winch,drum,power Operated, manufactured by Mcelroy Marine Machinery, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
NSN 3950-01-346-2722 has 1 manufacturer part number on file: B-3681-90 (Mcelroy Marine Machinery).
Key specifications for B-3681-90: Capstan Spool Style: SINGLE HEAD; Inclosure Type: FULLY INCLOSED; Capstan Spool Quantity: 1; Drum Surface Design: PLAIN. 11 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.