The Winch,drum,hand Operated, cataloged under National Stock Number 3950-00-138-3996, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. The manufacturer of record is Dutton-Lainson Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3950-00-138-3996 |
| Primary Part Number | B1500 |
| Item Name | Winch,drum,hand Operated |
| FSC / FSG | 3950 / 39 — Winches, Hoists, Cranes, and Derricks |
| Manufacturer | Dutton-Lainson Company |
| Status | ACTIVE |
| Load Rating | 1500.0 POUNDS MAXIMUM LBS |
| Drum Flange Diameter and Location | 6.000 INCHES NOMINAL FIRST DRUM IN |
| Drum Surface Design | PLAIN |
| Braking Method | AUTOMATIC |
| Gear Mechanical Advantage | 6 TO 1 RATIO |
| Furnished Items and Quantity | 1 LEVEL WINDING DEVICE |
| Operation Method | HAND |
| Drum Diameter and Location | 1.125 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 |
|---|---|
| B1500 PRIMARY | Dutton-Lainson Company (USA) |
| Reference | Meaning |
|---|---|
| 447895-0001 | C/1 Advisory reference — outside the item-of-supply concept Thales Usa, Inc. Div Air Mobility Solutions ("ams") |
NSN 3950-00-138-3996 is a Winch,drum,hand Operated, manufactured by Dutton-Lainson Company, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
NSN 3950-00-138-3996 has 1 manufacturer part number on file: B1500 (Dutton-Lainson Company).
1 possible match (shared part number, not a government interchangeability claim): 5963-01-599-1484. Verify interchangeability with system specifications before substitution.
Key specifications for B1500: Load Rating: 1500.0 POUNDS MAXIMUM LBS; Drum Flange Diameter and Location: 6.000 INCHES NOMINAL FIRST DRUM IN; Drum Surface Design: PLAIN; Braking Method: AUTOMATIC. 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.