The Bearing Unit,ball, cataloged under National Stock Number 3130-01-398-8899, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Action Bearing Co Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3130-01-398-8899 |
| Primary Part Number | SB204-12-47M-2 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Action Bearing Co Inc |
| Status | ACTIVE |
| Overall Outside Diameter | 3.5625 INCHES NOMINAL IN |
| Bolt Circle Diameter | 2.8125 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Housing Diameter | 2.6250 INCHES NOMINAL 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 |
|---|---|
| SB204-12-47M-2 PRIMARY | Action Bearing Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 1012306 | 5/9 Secondary reference U.S. Government activity |
NSN 3130-01-398-8899 is a Bearing Unit,ball, manufactured by Action Bearing Co Inc, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-398-8899 has 1 manufacturer part number on file: SB204-12-47M-2 (Action Bearing Co Inc).
Key specifications for SB204-12-47M-2: Overall Outside Diameter: 3.5625 INCHES NOMINAL IN; Bolt Circle Diameter: 2.8125 INCHES NOMINAL IN; Material: STEEL OVERALL; Housing Diameter: 2.6250 INCHES NOMINAL IN. 4 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.