The Interlock,hoist, cataloged under National Stock Number 3950-01-290-4990, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. The manufacturer of record is Yale Industrial Products, Inc. Div Duff Norton Company. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3950-01-290-4990 |
| Primary Part Number | PB-285 |
| Item Name | Interlock,hoist |
| FSC / FSG | 3950 / 39 — Winches, Hoists, Cranes, and Derricks |
| Manufacturer | Yale Industrial Products, Inc. Div Duff Norton Company |
| Status | ACTIVE |
| General Characteristics Item Description | PLASTIC;SINGLE SPEED |
| 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 |
|---|---|
| PB-285 PRIMARY | Yale Industrial Products, Inc. Div Duff Norton Company (USA) |
| Reference | Meaning |
|---|---|
| WR-3-680-1 FIG 7-8A INDEX NO 8 | C/1 Advisory reference — outside the item-of-supply concept Yale Industrial Products, Inc. Div Duff Norton Company |
| PB-285 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 3950-01-290-4990 is a Interlock,hoist, manufactured by Yale Industrial Products, Inc. Div Duff Norton Company, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
NSN 3950-01-290-4990 has 1 manufacturer part number on file: PB-285 (Yale Industrial Products, Inc. Div Duff Norton Company).
Key specifications for PB-285: General Characteristics Item Description: PLASTIC;SINGLE SPEED. 1 specification is 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.