The Bearing Unit,plain, cataloged under National Stock Number 3130-00-244-9583, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Smith and Smith Aircraft Co. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3130-00-244-9583 |
| Primary Part Number | 159-318474-3 |
| Item Name | Bearing Unit,plain |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Smith and Smith Aircraft Co |
| Status | ACTIVE |
| Mounting Hole Type | ROUND, UNTHREADED |
| Mounting Hole Diameter | 0.0980 INCHES NOMINAL IN |
| Alignment Type | RIGID |
| Shaft End Type | OPEN |
| Bore Diameter | 1.2500 INCHES NOMINAL IN |
| Material | MAGNESIUM ALLOY HOUSING |
| Material | ALUMINUM ALLOY BEARING SURFACE |
| 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 |
|---|---|
| 159-318474-3 PRIMARY | Smith and Smith Aircraft Co (USA) |
| Reference | Meaning |
|---|---|
| 159-318474-3 | 5/9 Secondary reference U.S. Government activity |
NSN 3130-00-244-9583 is a Bearing Unit,plain, manufactured by Smith and Smith Aircraft Co, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-244-9583 has 1 manufacturer part number on file: 159-318474-3 (Smith and Smith Aircraft Co).
Key specifications for 159-318474-3: Mounting Hole Type: ROUND, UNTHREADED; Mounting Hole Diameter: 0.0980 INCHES NOMINAL IN; Alignment Type: RIGID; Shaft End Type: OPEN. 7 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.