The Bushing,sleeve, cataloged under National Stock Number 3120-01-044-6409, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-044-6409 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Status | ACTIVE |
| Flange Outside Diameter | 0.5000 INCHES NOMINAL IN |
| Body Outside Diameter | 0.3750 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | AMS 5643, 17-4PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.2500 INCHES MINIMUM AND 0.2510 INCHES MAXIMUM IN |
| Flange Width | 0.0570 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN |
| Material | STEEL COMP 630 OVERALL |
| 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 |
|---|---|
| BACB28X4C012 | 3/2 Design control — primary reference U.S. Government activity |
| BACB28X4C012 | 5/9 Secondary reference The Boeing Company Div Commercial |
NSN 3120-01-044-6409 is a Bushing,sleeve, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3120-01-669-2009, 3120-01-669-3948. Verify interchangeability with system specifications before substitution.
Key specifications for 3120-01-044-6409: Flange Outside Diameter: 0.5000 INCHES NOMINAL IN; Body Outside Diameter: 0.3750 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN; Style Designator: SOLID, EXTERNAL FLANGE ONE END; Material Document and Classification: AMS 5643, 17-4PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.