The Bushing,sleeve, cataloged under National Stock Number 3120-01-478-8301, 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 9 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-478-8301 |
| Primary Part Number | 4M375-05001 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Corner Shape | CHAMFERED OUTSIDE RIGHT CORNER |
| Corner Shape | UNDERCUT LEFT FLANGE BODY CORNER |
| Flange Outside Diameter | 0.5760 INCHES NOMINAL IN |
| Body Outside Diameter | 0.4500 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Body Inside Diameter | 0.3400 INCHES NOMINAL IN |
| Flange Width | 0.0600 INCHES MINIMUM AND 0.0640 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 173 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 4M375-05001 | All Power Manufacturing Co. (USA) |
| 4M375-05001 | Avalon Machine Products Inc (USA) |
| 4M375-05001 PRIMARY | The Boeing Company Div Defense (USA) |
| 4M375-05001 | Mayday Manufacturing Co. (USA) |
NSN 3120-01-478-8301 is a Bushing,sleeve, manufactured by The Boeing Company Div Defense, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-478-8301 has 4 manufacturer part numbers on file: 4M375-05001 (All Power Manufacturing Co.), 4M375-05001 (Avalon Machine Products Inc), 4M375-05001 (The Boeing Company Div Defense), 4M375-05001 (Mayday Manufacturing Co.).
Key specifications for 4M375-05001: Corner Shape: CHAMFERED OUTSIDE RIGHT CORNER; Corner Shape: UNDERCUT LEFT FLANGE BODY CORNER; Flange Outside Diameter: 0.5760 INCHES NOMINAL IN; Body Outside Diameter: 0.4500 INCHES NOMINAL IN. 9 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.