The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-00-684-5366, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Rbc Transport Dynamics Corp Div Rbc Transport Dynamics. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3120-00-684-5366 |
| Primary Part Number | 03-523-20E-003 |
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Rbc Transport Dynamics Corp Div Rbc Transport Dynamics |
| Status | ACTIVE |
| Inner Member Width | 1.1820 INCHES MINIMUM AND 1.1870 INCHES MAXIMUM IN |
| Outer Member Width | 0.9370 INCHES NOMINAL IN |
| Style Designator | WITHOUT INSERT OR LINER |
| Lubrication Feature | PERFORATION INNER MEMBER |
| Lubrication Feature | GROOVE INTERNAL INNER MEMBER |
| Surface Treatment | CADMIUM OUTER RACE MEMBER |
| Surface Treatment | CHROMIUM INNER MEMBER |
| Bore Diameter | 1.2495 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN |
| Material | STEEL OUTER RACE MEMBER |
| Material | STEEL COMP E52100 INNER MEMBER |
| Outer Member Outside Diameter | 2.3743 INCHES MINIMUM AND 2.3750 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 |
|---|---|
| 03-523-20E-003 | Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA) |
| BH-20LS | Echelon Supply and Service, Inc. (USA) |
| LH-20D | Roller Bearing Company of America, Inc. (USA) |
| Reference | Meaning |
|---|---|
| BH20LS | 5/9 Secondary reference Stephens-Adamson Inc a Sub of Allis-Chalmers Corp |
| BH-20LS | 3/2 Design control — primary reference U.S. Government activity |
| BH20LS | 5/9 Secondary reference Morse Industrial Corp Sealmaster Bearing Div Sub of Emerson Electric Co |
NSN 3120-00-684-5366 is a Bearing,plain,self-Aligning, manufactured by Rbc Transport Dynamics Corp Div Rbc Transport Dynamics, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-684-5366 has 3 manufacturer part numbers on file: 03-523-20E-003 (Rbc Transport Dynamics Corp Div Rbc Transport Dynamics), BH-20LS (Echelon Supply and Service, Inc.), LH-20D (Roller Bearing Company of America, Inc.).
Key specifications for 03-523-20E-003: Inner Member Width: 1.1820 INCHES MINIMUM AND 1.1870 INCHES MAXIMUM IN; Outer Member Width: 0.9370 INCHES NOMINAL IN; Style Designator: WITHOUT INSERT OR LINER; Lubrication Feature: PERFORATION INNER MEMBER. 11 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.