The Bushing,sleeve, cataloged under National Stock Number 3120-01-533-4376, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is The Boeing Company Div Defense. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-533-4376 |
| Primary Part Number | ST4M130-04055 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Flange Outside Diameter | 0.5000 INCHES NOMINAL IN |
| Body Outside Diameter | 0.3751 INCHES NOMINAL IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Body Inside Diameter | 0.2505 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Flange Width | 0.0900 INCHES NOMINAL IN |
| Material | STEEL COMP 631 OVERALL |
| 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 |
|---|---|
| ST4M130-04055 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| ST4M130-04055 | 5/9 Secondary reference Avalon Machine Products Inc |
| ST4M130-04055 | 5/1 Secondary reference All Power Manufacturing Co. |
| ST4M130-04055 | 5/1 Secondary reference Mayday Manufacturing Co. |
| ST4M130-04055 | 5/1 Secondary reference Reid Products Inc. Dba Reid Products Inc |
NSN 3120-01-533-4376 is a Bushing,sleeve, manufactured by The Boeing Company Div Defense, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-533-4376 has 1 manufacturer part number on file: ST4M130-04055 (The Boeing Company Div Defense).
Key specifications for ST4M130-04055: Flange Outside Diameter: 0.5000 INCHES NOMINAL IN; Body Outside Diameter: 0.3751 INCHES NOMINAL IN; Style Designator: SOLID, EXTERNAL FLANGE ONE END; Overall Length: 0.3400 INCHES NOMINAL IN. 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.