The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-01-283-7803, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Timken Co Div the Timken Company. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-283-7803 |
| Primary Part Number | 1366AS1047 |
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Timken Co Div the Timken Company |
| Status | ACTIVE |
| Inner Member Width | 1.4950 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN |
| Hardness Rating | 57.0 ROCKWELL C MINIMUM AND 61.0 ROCKWELL C MAXIMUM INNER MEMBER |
| Outer Member Width | 1.2500 INCHES NOMINAL IN |
| Style Designator | WITH INSERT AND/OR LINER |
| Material Document and Classification | MIL-S-7420,CLASS 3 MIL SPEC SINGLE MATERIAL RESPONSE INNER MEMBER |
| Surface Treatment | CHROMIUM SPHERICAL SURFACE |
| Static Radial Load Rating | 133000 POUNDS LBS |
| Bore Diameter | 2.3750 INCHES MINIMUM AND 2.3770 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE RACE LINER |
| Material | STEEL COMP E52100 INNER MEMBER |
| Material | STEEL COMP 410 OUTER RACE MEMBER |
| Outer Member Outside Diameter | 3.1865 INCHES MINIMUM AND 3.1875 INCHES MAXIMUM 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 |
|---|---|
| 1366AS1047 PRIMARY | Timken Co Div the Timken Company (USA) |
| Reference | Meaning |
|---|---|
| 1366AS1047 | 3/2 Design control — primary reference U.S. Government activity |
| RSST-38-1 | 5/1 Secondary reference U.S. Government activity |
| 1366AS1047 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 3120-01-283-7803 is a Bearing,plain,self-Aligning, manufactured by Timken Co Div the Timken Company, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-283-7803 has 1 manufacturer part number on file: 1366AS1047 (Timken Co Div the Timken Company).
Key specifications for 1366AS1047: Inner Member Width: 1.4950 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN; Hardness Rating: 57.0 ROCKWELL C MINIMUM AND 61.0 ROCKWELL C MAXIMUM INNER MEMBER; Outer Member Width: 1.2500 INCHES NOMINAL IN; Style Designator: WITH INSERT AND/OR LINER. 12 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.