The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-01-288-9221, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Skf Usa Inc.. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 3120-01-288-9221 |
| Primary Part Number | 12SF20-TT |
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Skf Usa Inc. |
| Status | ACTIVE |
| Inner Member Width | 1.0930 INCHES NOMINAL IN |
| Outer Member Width | 0.9370 INCHES NOMINAL IN |
| Style Designator | WITH INSERT AND/OR LINER |
| Bore Diameter | 1.2500 INCHES NOMINAL IN |
| Material | STEEL INNER MEMBER |
| Material | STEEL OUTER RACE MEMBER |
| Material | RUBBER RACE LINER |
| Outer Member Outside Diameter | 2.0000 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 |
|---|---|
| 12SF20-TT PRIMARY | Skf Usa Inc. (USA) |
| 12SF20-TT | Timken Co Div the Timken Company (USA) |
| Reference | Meaning |
|---|---|
| 12SF20-TT | 5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
| 31036-90185 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3120-01-288-9221 is a Bearing,plain,self-Aligning, manufactured by Skf Usa Inc., classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-288-9221 has 2 manufacturer part numbers on file: 12SF20-TT (Skf Usa Inc.), 12SF20-TT (Timken Co Div the Timken Company).
Key specifications for 12SF20-TT: Inner Member Width: 1.0930 INCHES NOMINAL IN; Outer Member Width: 0.9370 INCHES NOMINAL IN; Style Designator: WITH INSERT AND/OR LINER; Bore Diameter: 1.2500 INCHES NOMINAL IN. 8 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.