The Housing,bearing Unit, cataloged under National Stock Number 3130-01-300-2811, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Smart Machines, Inc. Dba Barker and Williamson. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Housing,bearing Unit |
| FSC / FSG | 3130 — Bearings, Mounted (FSG 31) |
| Manufacturers | Smart Machines, Inc. Dba Barker and Williamson (CAGE 4W146); Borgwarner Turbo Systems Llc (CAGE 4W602); Viking Incorporated Dba Viking Inc (CAGE 1EN78) |
| Parameter | Value |
|---|---|
| NSN | 3130-01-300-2811 |
| Primary Part Number | 256 |
| Item Name | Housing,bearing Unit |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Smart Machines, Inc. Dba Barker and Williamson |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 256 PRIMARY | Smart Machines, Inc. Dba Barker and Williamson (USA) |
| 146256 | Borgwarner Turbo Systems Llc (USA) |
| 490298-V | Viking Incorporated Dba Viking Inc (USA) |
| Reference | Meaning |
|---|---|
| 490298 | 5/9 Secondary reference Dresser, Llc |
| 146256 | 5/9 Secondary reference Schwitzer Engine Components a Household Intl Co |
NSN 3130-01-300-2811 is a Housing,bearing Unit, manufactured by Smart Machines, Inc. Dba Barker and Williamson, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-300-2811 has 3 manufacturer part numbers on file: 256 (Smart Machines, Inc. Dba Barker and Williamson), 146256 (Borgwarner Turbo Systems Llc), 490298-V (Viking Incorporated Dba Viking Inc).
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.