The Bearing,sleeve, cataloged under National Stock Number 3120-01-062-4884, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-062-4884 |
| Primary Part Number | 123-4775444ITEM3 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flange Outside Diameter | 4.2500 INCHES NOMINAL IN |
| Body Outside Diameter | 2.1140 INCHES MINIMUM AND 2.1150 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Body Inside Diameter | 1.3750 INCHES MINIMUM AND 1.3760 INCHES MAXIMUM IN |
| Lubricant Accommodation Style | GROOVED CIRCULAR |
| Antirotation/lubrication Type and Quantity | 4 HOLE |
| Flange Width | 0.5000 INCHES NOMINAL IN |
| Surface Groove Location and Quantity | 1 INTERNAL |
| 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 |
|---|---|
| 123-4775444ITEM3 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 123-4775444 ITE | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 203-4775444 ITE | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 87542-1705ITEM3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3120-01-062-4884 is a Bearing,sleeve, manufactured by Naval Sea Systems Command, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-062-4884 has 1 manufacturer part number on file: 123-4775444ITEM3 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-123-2201. Verify interchangeability with system specifications before substitution.
Key specifications for 123-4775444ITEM3: Flange Outside Diameter: 4.2500 INCHES NOMINAL IN; Body Outside Diameter: 2.1140 INCHES MINIMUM AND 2.1150 INCHES MAXIMUM IN; Style Designator: SOLID, EXTERNAL FLANGE ONE END; Overall Length: 1.3800 INCHES NOMINAL IN. 8 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.