The Bushing,sleeve, cataloged under National Stock Number 3120-01-285-7688, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-285-7688 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Flange Outside Diameter | 3.9900 INCHES MINIMUM AND 4.0100 INCHES MAXIMUM IN |
| Body Outside Diameter | 3.5020 INCHES MINIMUM AND 3.5025 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | DYFLON,CAGEC 81376 MFR REF SINGLE MATERIAL RESPONSE INSIDE DIAMETER SURFACE OF BODY |
| Material Document and Classification | DYFLON,CAGEC 81376 MFR REF SINGLE MATERIAL RESPONSE LEFT END SURFACE OF BODY AND FLANGE |
| Body Inside Diameter | 3.0050 INCHES MINIMUM AND 3.0060 INCHES MAXIMUM IN |
| Flange Width | 0.1820 INCHES MINIMUM AND 0.1920 INCHES MAXIMUM IN |
| Material | PLASTIC INSIDE DIAMETER SURFACE OF BODY |
| Material | PLASTIC LEFT END SURFACE OF BODY AND FLANGE |
| Material | STEEL CORROSION RESISTING OUTSIDE DIAMETER SURFACE OF BODY |
| Material | STEEL CORROSION RESISTING OUTSIDE DIAMETER SURFACE OF FLANGE |
| Material | STEEL CORROSION RESISTING RIGHT END SURFACE OF BODY |
| Material | STEEL CORROSION RESISTING RIGHT END SURFACE OF LEFT FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| DBSF-48-445-002 | 3/2 Design control — primary reference U.S. Government activity |
| 518-5794763 ITE | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| DBSF-48-445 | 5/9 Secondary reference U.S. Government activity |
NSN 3120-01-285-7688 is a Bushing,sleeve, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
Key specifications for 3120-01-285-7688: Corner Shape: SQUARE ALL CORNERS; Flange Outside Diameter: 3.9900 INCHES MINIMUM AND 4.0100 INCHES MAXIMUM IN; Body Outside Diameter: 3.5020 INCHES MINIMUM AND 3.5025 INCHES MAXIMUM IN; Style Designator: SOLID, EXTERNAL FLANGE ONE END. 14 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.