The Brake Ring Assembly,hoist, cataloged under National Stock Number 3950-01-437-8828, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. The manufacturer of record is Ingersoll-Rand Co Material Handling Div. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3950-01-437-8828 |
| Primary Part Number | DU-B574 |
| Item Name | Brake Ring Assembly,hoist |
| FSC / FSG | 3950 / 39 — Winches, Hoists, Cranes, and Derricks |
| Manufacturer | Ingersoll-Rand Co Material Handling Div |
| Status | ACTIVE |
| General Characteristics Item Description | BAND AND LINING W/AUTOMATIC BRAKE ADJUSTING SCREW |
| 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 |
|---|---|
| DU-B574 PRIMARY | Ingersoll-Rand Co Material Handling Div (USA) |
| Reference | Meaning |
|---|---|
| DU-B574 | C/1 Advisory reference — outside the item-of-supply concept Ingersoll Rand Co |
| DU-574 | C/1 Advisory reference — outside the item-of-supply concept Ingersoll Rand Co |
NSN 3950-01-437-8828 is a Brake Ring Assembly,hoist, manufactured by Ingersoll-Rand Co Material Handling Div, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
NSN 3950-01-437-8828 has 1 manufacturer part number on file: DU-B574 (Ingersoll-Rand Co Material Handling Div).
Key specifications for DU-B574: General Characteristics Item Description: BAND AND LINING W/AUTOMATIC BRAKE ADJUSTING SCREW; End Item Identification: WASP CLASS LHD. 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.